Derby County
Kelle has been outstanding since he has come in. He is developing really well and looks like he could be a good keeper... We felt because of Kelle we were in a position to release Adam Legzdins.
On 23 January 2014, Roos moved to Championship side Derby County after impressing during a trial. He signed a 2+1⁄2-year contract for an undisclosed fee, believed to be around £30,000 plus add-ons, including the requirement that Derby play a pre-season friendly with Nuneaton in the summer. [20] [7] [21] He was installed as understudy to Lee Grant after the departure of goalkeeper Adam Legzdins, and started the 2014–15 season on the bench. [19] He made his first-team debut for the "Rams" in a League Cup match against Reading at Pride Park Stadium on 23 September 2014. He made several saves and kept a clean sheet as Derby won 2–0. [22] He played in Derby's next League Cup match, a 5–2 win over Fulham on 28 October, and also played three FA Cup matches as Derby recorded 1–0 and 2–0 wins over Southport and Chesterfield before Reading gained revenge by eliminating Derby from the FA Cup at the Fifth Round. [23]
On 15 July 2015, Roos joined Championship rivals Rotherham United on a season-long loan deal, along with team-mate Farrend Rawson. [24] However, he got off to a poor start with a 4–1 defeat to Milton Keynes Dons at the New York Stadium on 8 August, which led to heavy criticism from "Millers" fans on social media. [25] Roos returned to Derby just six weeks into the loan period after conceding ten goals in his four appearances, leaving Rotherham bottom of the table. Manager Steve Evans stated that "at this minute in time his inconsistency is not something we could afford", and signed Lee Camp to replace him. [26]
On 1 February 2016, Roos joined League Two side AFC Wimbledon on loan for the rest of the 2015–16 season. [27] He made his debut for the "Dons" 12 days later in a 4–1 victory over Luton Town at Kingsmeadow. [28] He quickly established himself in Neal Ardley's first-team and proved highly popular with supporters as he kept eight clean sheets in 20 appearances for the club. [29] He helped the club achieve promotion to League One for the first time since their reformation, as he kept another clean sheet in a 2–0 victory over Plymouth Argyle in the League Two play-off final at Wembley Stadium, making an "excellent diving save" from a Graham Carey free kick when the game was still goalless. [30]
On 24 August 2016, Roos signed with League One side Bristol Rovers on a season-long loan. [31] He made his debut for the "Pirates" six days later in a 3–2 EFL Trophy defeat by Reading U23 at the Memorial Stadium. [32] He made his league debut for the "Gas" on 10 September, in a 2–2 draw with Rochdale. [33] However, he was dropped in December as manager Darrell Clarke decided to give Will Puddy a run in goal. [34] He returned to Derby on 10 January 2017, having made 22 appearances in all competitions for Bristol Rovers. [35]
On 16 September 2017, Roos returned to League Two on an emergency loan to Port Vale; the loan was approved as first-choice goalkeeper Rob Lainton was injured and manager Michael Brown did not have confidence in inexperienced duo Sam Hornby and Ryan Boot. [36] He made his debut for the "Valiants" later that same day in a 1–1 draw with Forest Green Rovers at Vale Park, which proved to be Brown's last game as manager. [37] Seven days later he spilled a routine cross to allow Yeovil Town the equalising goal in a 1–1 draw, but was backed by caretaker manager David Kelly, who said "he is a good presence for us and he will get over it". [38] He played nine matches before he was forced to return to Derby after picking up an injury in October. [39]
On 8 December 2017, he then joined League One side Plymouth Argyle on an emergency loan after injuries to Luke McCormick, Kyle Letheren and Robbert te Loeke. [40] In doing so he was forced to cancel a planned trip back to the Netherlands to spend Christmas with his family. [41] Roos played in four games for Argyle, going unbeaten and keeping one clean sheet before leaving Home Park on 28 December; Argyle signed Remi Matthews on loan from Norwich the day later. [42] [43]
With regular custodian Scott Carson out injured, Roos finally made his league debut for Derby on 19 January 2019, helping the "Rams" to 2–1 victory over Reading. [44] Manager Frank Lampard said he then faced a "nice but difficult" selection decision between Roos and the returning Carson. [45] He stuck with Roos until the end of the 2018–19 season, as Derby went on to reach the play-off final. [46] Derby were beaten 2–1 by Aston Villa in the final, with Roos being at fault for the second Villa goal after misjudging a shot from Anwar El Ghazi to allow John McGinn to head the ball into an empty net. [47] He signed a new three-year contract with Derby County at the end of the 2018–19 season. [48]
Following some poor appearances, manager Phillip Cocu dropped Roos for Huddersfield Town loanee Ben Hamer after he conceded three goals at Fulham on 26 November 2019. [49] He worked on his weaknesses with goalkeeping coach Shay Given and continued to play in the FA Cup. [50] He volunteered money and time to charities during the COVID-19 pandemic in England. [51]
Roos started Derby's first game of the 2020–21 season against Barrow, keeping a clean sheet in a 0–0 draw and then saving three penalties in the resultant shootout to help Derby advance to the next round of the EFL Cup. [52] He competed with David Marshall for a first-team place, with new manager Wayne Rooney generally preferring the more experienced Marshall. [53] He played on the final day of the season, a 3–3 draw with Sheffield Wednesday that was enough to keep Derby just above the relegation zone. [54]
He was sent off for bringing down Sheffield United's Billy Sharp in a 1–0 away defeat on 25 September 2021. [55] He lost this first-team place to Ryan Allsop in December, though remained on the bench ahead of Marshall. [56] [57] Roos played the final two games of the 2021–22 relegation season as Rooney wanted to reward him for his hard work in training. [58] [59]
