Arroyo signed with the Seattle Mariners as an international free agent in January 2022 for $1.375 million,the most for a Colombian that year. He was one of three Mariners international prospects who received signing bonuses of more than $1 million in 2022,along with Lázaro Montes and Martín Gonzalez.[1][2]
Arroyo made his professional debut that year with the Dominican Summer League Mariners. Arroyo started 2023 with the Arizona Complex League Mariners before being promoted to the Single-A Modesto Nuts in mid-June.[3] He started 2024 with Modesto for being promoted to the Everett AquaSox in late June.[4] In 120 games for the two teams,he hit .285/.400/.409 with 23 home runs and 89 runs batted in.[3] He was also hit by 23 pitches,seventh-most in the minors in 2024.[5] He was named the 98th best prospect in baseball by MLB.com before the 2025 season.[6]
Castano signed with the New York Yankees on June 1,2018 and joined the organization's Dominican Summer League affiliate that summer. He made his American debut in 2019 with the Gulf Coast League Yankees West. He steadily advanced in the Yankees' minor league system,reaching the Triple-AScranton/Wilkes-Barre RailRiders in 2023. The Yankees released Castano on August 8,2023. Three days later,he signed with the Mariners and spent the rest of the season with the Double-A Arkansas Travelers.[11] Castano split the 2024 campaign between Double-A Arkansas and the Triple-A Tacoma Rainiers. In 29 games (26 starts) for the two affiliates,he accumulated a 5–8 record and 4.38 ERA with 108 strikeouts across 125+1⁄3 innings pitched.[12] On November 4, 2024, the Mariners added Castano to their 40-man roster to prevent him from reaching minor league free agency.[13]
Castano was optioned to Triple-A Tacoma to begin the 2025 season.[14]
Celestin signed with the Seattle Mariners as an international free agent in January 2023 for $4.7 million.[15][16][17] He did not make his professional debut that year due to a hamstring injury he suffered in June.[18][19]
Celestin made his professional debut in on May 4,2024 with the Arizona Complex League Mariners. In 32 games,he hit .352 with 3 home runs and 5 stolen bases. He only played once after June 20,and his season ended in early August after he underwent wrist surgery.[20][21] He was named the 74th best prospect in baseball by MLB.com before the 2025 season.[6]
Matthew G. Cronin (born September 20,1997) is an American professional baseballpitcher in the Seattle Mariners organization.
Cronin was a reliever at the University of Arkansas in all 65 of his appearances in his collegiate career. The Washington Nationals drafted him in the fourth round of the 2019 Major League Baseball draft,[22] and after he signed with Washington,he was assigned to the High-A Hagerstown Suns for the remainder of the 2019 season. He had a 0.82 ERA in his first professional season,striking out 41 batters in 22 innings. He was named to the Nationals' player pool during the COVID-19 pandemic–shortened 2020 season,although he was not called up to the major leagues.[23]
Before the 2021 season,Cronin ranked as the organization's ninth-best prospect,according to Baseball America.[24] The Nationals invited him to participate in major league spring training in 2021.[25] After spring training,Cronin was assigned to the High-A Wilmington Blue Rocks to begin the 2021 season,although MLB Pipeline speculated that he could rise quickly in a relief role.[26]
In 2022,Cronin split the year between the Double-A Harrisburg Senators and Triple-A Rochester Red Wings. In 48 relief appearances,he had a combined 2.42 ERA with 56 strikeouts in 52 innings of work. On November 15,2022,the Nationals added Cronin to their 40-man roster to protect him from the Rule 5 draft.[27]
Cronin was optioned to Rochester to begin the 2023 season.[28] In 14 games,he logged a 5.02 ERA with 13 strikeouts across 14+1⁄3 innings pitched. On August 2,2023,it was announced that Cronin would undergo season-ending surgery to repair a herniated disc in his back.[29] Following the season on November 6,Cronin was designated for assignment after multiple players were activated from the injured list.[30] He cleared waivers and was sent outright to Triple-A Rochester on November 10.[31]
Cronin split the 2024 campaign with Harrisburg and Wilmington. He made 40 combined appearances out of the bullpen,registering a 1.42 ERA with 54 strikeouts and 10 saves across 44+1⁄3 innings pitched.[32]
Cronin pitches left-handed,with a fastball up to 96 miles per hour (154km/h) that plays up due to its high spin rate,along with a splitter and a curveball.[34]
Dollard made his professional debut in 2021 with the Modesto Nuts and was promoted to the Everett AquaSox in June.[41] Over 19 games (18 starts) between the two teams,he went 9–4 with a 5.14 ERA and 133 strikeouts over 105 innings. He pitched for the Double-A Arkansas Travelers in 2002.[42] Over 27 starts,he went 16–2 with a 2.25 ERA and 131 strikeouts over 144 innings.[43] He led the minor leagues in wins.[44]
Dollard was assigned to the Tacoma Rainiers to begin the 2023 season.[45] Dollard made only three starts for Tacoma,logging a 7.56 ERA across 8+1⁄3 innings,before he was placed on the injured list with a shoulder impingement on April 26.[46] On June 27,it was announced that Dollard would undergo labrum surgery and miss the remainder of the season.[47] He did not pitch in 2024.[43]
Dunn made his professional debut in 2018 State College Spikes and also played for the Peoria Chiefs,batting .253 with three home runs and 35 RBIs over 65 games.[56] In 2019,he played with Peoria,hitting .247 with three home runs and 38 RBIs over 104 games.[57] He did not play a minor league game in 2020 due to the cancellation of the season caused by the COVID-19 pandemic.[58] In 2021,he played for the Springfield Cardinals and hit .259 with six home runs and 36 RBIs over 95 games,and he returned to Springfield in 2022,hitting .271 with seven home runs and 44 RBIs over 112 games. Dunn opened the 2023 season with Springfield.[59][60][61] In late July,he was promoted to the Memphis Redbirds.[62] Over 124 games between the two teams,he slashed .319/.413/.442 with nine home runs,sixty RBIs,and 25 doubles.[63]
On October 15,2024,Dunn signed a minor league contract with the Seattle Mariners.[64]
Farmelo was selected 29th overall by the Seattle Mariners in the 2023 Major League Baseball draft. He signed with the Mariners on July 17 for an over-slot bonus of $3.2 million.[69][70] He joined the Single-AModesto Nuts for the 2023 playoffs,playing as an outfielder.[71] He hit .200 in 4 games,with 1 triple and 1 home run.[72] Farmelo returned to Modesto in 2024,but he tore his ACL in mid-June while trying to catch a pop-up,ending his season.[73] In 46 games before the injury,he hit .264 with 4 home runs and 18 stolen bases.[74] He was named the 96th best prospect in baseball by MLB.com before the 2025 season.[6]
Montes signed with the Seattle Mariners as an international free agent in January 2022 for $2.5 million.[78][79] He was viewed as a high-risk,high-reward prospect by evaluators.[80] He was one of three Mariners international prospects who received signing bonuses of more than $1 million in 2022,along with Michael Arroyo and Martín Gonzalez.[1][2] He made his professional debut that year with the Dominican Summer League Mariners.
Montes started 2023 with the Arizona Complex League Mariners before being promoted in early August to the Modesto Nuts.[80] He hit .303 with 13 home runs in 70 games for the two clubs,but struck out in 25 percent of his plate appearances. Before the 2024 season,Baseball America ranked Montes as the 100th best prospect. He returned to Modesto to start the season and hit well,batting .309 with 13 home runs in 65 games. He was promoted to the Everett Aquasox in June,and his bat cooled off. He hit .260 with 8 home runs in 51 games in Everett.[81] He cut down his strikeout rate to 19 percent of plate appearances in Modesto,but it ballooned to 29 percent in Everett.[82] He was named the 42nd best prospect in baseball by MLB.com before the 2025 season.[6]
Morales made his professional debut in 2021 with the Arizona Complex League Mariners. He pitched for the Modesto Nuts in 2022 and 2023. In 2022,he led the Nuts with 125 strikeouts in 120+1⁄3 innings,but had a 5–7 record and 5.91 ERA.[87] He started 2024 with the Everett Aquasox before being promoted to the Arkansas Travelers at the beginning of July.[88][89] Despite the higher competition,he had his best season in the minors,with a 13–2 record and 3.26 ERA in 149 innings.[90]
Peete grew up in Tyrone,Georgia and attended Trinity Christian School.[91] As a junior,he racked up an average of .400 with 4 home runs,5 doubles,a triples &12 RBIs.[92] But prior to that however,he represented the Southeast Region team in the 2018 Little League World Series and batted .409.[93] He was named the 2023 Region 4-4A Player of the Year &2023 Rawlings-Perfect Game Preseason All-Region First Team (Southeast) after his senior year when he batted .444 with 12 home runs,7 doubles,4 triples &36 RBIs.[94] Peete has committed to play baseball at Georgia Tech.[95]
Peete was selected by the Seattle Mariners in the Competitive Balance A Round,with the 30th overall selection of the 2023 Major League Baseball draft.[96] On July 18,2023,he signed for an over-slot deal worth $2.5 million.[97] Peete started his professional career that August with the ACL Mariners,playing 10 games with a .351 batting average.[98] Later in August,he was promoted to the Modesto Nuts,where he hit .242 with 14 RBIs.[99] He hit two home runs,the first of his career,which were both grand slams.[100] Peete returned to Modesto in 2024,playing primarily shortstop. He hit .269 with 7 home runs,leading the Nuts with 45 stolen bases and 9 triples.[101]
Phillips attended Boerne High School in Boerne,Texas.[102] In his senior season in 2022,his fastball velocity increased to 98 miles per hour. However,he had Tommy John surgery in April.[103] Despite his injury,the Atlanta Braves selected Phillips in the second round of the 2022 MLB draft.[104] He received a $1.5 million signing bonus.[105] He did not throw a pitch in a game while in the Braves organization.[106]
Polcovich was dismissed from the Kentucky baseball team during the first semester of his freshman year after skipping many classes. He did not play for the Wildcats in a game.[110][111] He left Kentucky and enrolled at Northwest Florida State College,where he hit .280 with three home runs,18 RBIs,and 13 stolen bases over 40 games as a freshman in 2018,then batting .273 with 12 home runs and 38 RBIs over 53 games as a sophomore in 2019.[112] After his sophomore year,he played collegiate summer baseball with the Chatham Anglers of the Cape Cod Baseball League and was named a league all-star.[113][114][115] He also transferred to Oklahoma State University.[116] As a junior at Oklahoma State in 2020,he batted .344 with two home runs in 21 games before the season was cancelled due to the COVID-19 pandemic.[117] He was selected by the Seattle Mariners in the third round,with the 78th overall pick,of the 2020 Major League Baseball draft. He signed for $575,000.[118][119][120][121]
Polcovich made his professional debut in 2021 with the Everett AquaSox of the High-A West with whom he batted .271/.415/.505 with ten home runs,47 RBIs,and 16 stolen bases over 58 games.[122] He was promoted to the Arkansas Travelers of the Double-A South in late July,slashing .133/.242/.211 with two home runs,14 RBIs,and four doubles over 36 games to end the season.[123] He returned to Arkansas for the 2022 season.[124] Over 118 games,he batted .242/.345/.386 with 12 home runs,60 RBIs,and 18 stolen bases.[125] He repeated in Double-A in 2023 and 2024,not raising his batting average or on-base plus slugging above his 2022 numbers.[121]
Raposo made his professional debut in 2021 with the Double-A Springfield Cardinals,hitting .267/.368/.362 with one home run and 12 RBI across 42 games.[130] He returned to Springfield the following season,playing in 59 games and batting .270/.345/.461 with seven home runs and 34 RBI.[131] Raposo split the 2023 campaign between Springfield and the Triple-A Memphis Redbirds. In 40 games between the two teans,he accumulated a .241/.321/.386 batting line with four home runs and 13 RBI.[132] Raposo began the 2024 season with Memphis,hitting .187/.241/.323 with five home runs and 22 RBI in 47 games prior to his call–up.[133]
On June 22,2024,Raposo was selected to the 40-man roster and promoted to the major leagues for the first time following an injury to Iván Herrera.[134] He did not make an appearance for St. Louis and was optioned down to Memphis on June 24.[135] Raposo was designated for assignment by the Cardinals on July 29.[136]
On August 1,2024,Raposo was claimed off waivers by the Toronto Blue Jays.[137] In 20 games for the Triple-A Buffalo Bisons,he slashed .246/.361/.312 with one home run and five RBI. Raposo was designated for assignment following the signing of Yimi García on December 13.[138]
On December 19,2024,Raposo was claimed off waivers by the Seattle Mariners.[139] On January 14,2025,Raposo was designated for assignment by the Mariners.[140] He cleared waivers and was sent outright to the Triple-A Tacoma Rainiers on January 17.[141]
Williamson played college baseball for the William &Mary Tribe. He was named to the First Team All-CAA three consecutive years,from 2021–2023,the first player in school history with such a streak.[142] He also won the CAA Defensive Player of the Year in 2022 after having a .975 fielding percentage.[143] The 2023 season was the best for Williamson where he had a .391 batting average,.513 on base percentage,12 home runs,and 49 RBIs,while also stealing 14 bases.[144] For his performance on the year he was named CAA Player of the Year.[145] In 2023,he played collegiate summer baseball with the Hyannis Harbor Hawks of the Cape Cod Baseball League.[146]
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