| Singles | |
|---|---|
| 1989 Campionati Internazionali di Sicilia | |
| Champion |  Guillermo Pérez Roldán |
| Runner-up |  Paolo Canè |
| Final score | 6–1, 6–4 |
| Draw | 32 (2WC/4Q) |
| Seeds | 8 |
Mats Wilander was the defending champion, but did not compete this year.
Guillermo Pérez Roldán won the title by defeating Paolo Canè 6–1, 6–4 in the final. [1]
Alberto Mancini (quarterfinals) Martín Jaite (first round)
Thomas Muster (first round)
Paolo Canè (final) Sergi Bruguera (quarterfinals)
Andrés Gómez (first round) Guillermo Pérez Roldán (champion)
Goran Ivanišević (semifinals)| Semifinals | Final | ||||||||||||
| 8 | Goran Ivanišević | 4 | 3 | ||||||||||
| 4 | Paolo Canè | 6 | 6 | ||||||||||
| 4 | Paolo Canè | 1 | 4 | ||||||||||
| 7 | Guillermo Pérez Roldán | 6 | 6 | ||||||||||
| Q |  Pavel Vojtíšek | 6 | 4 | 1 | |||||||||
| 7 | Guillermo Pérez Roldán | 4 | 6 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Mancini | 6 | 6 | ||||||||||||||||||||||||
| C Costa | 2 | 1 | 1 | A Mancini | 6 | 6 | |||||||||||||||||||||
| S Lochbihler | 6 | 6 | S Lochbihler | 4 | 0 | ||||||||||||||||||||||
| F Cancellotti | 4 | 4 | 1 | A Mancini | 6 | 5 | 4 | ||||||||||||||||||||
| S Colombo | 6 | 6 | 8 | G Ivanišević | 3 | 7 | 6 | ||||||||||||||||||||
| M Cierro | 2 | 1 | S Colombo | 4 | 6 | ||||||||||||||||||||||
| WC |  J Myström | 1 | 6 | 0 | 8 | G Ivanišević | 6 | 7 | |||||||||||||||||||
| 8 | G Ivanišević | 6 | 4 | 6 | 8 | G Ivanišević | 4 | 3 | |||||||||||||||||||
| 4 | P Canè | 7 | 6 | 4 | P Canè | 6 | 6 | ||||||||||||||||||||
| F Roig | 6 | 4 | 4 | P Canè | 4 | 6 | 6 | ||||||||||||||||||||
| G Giussani | 6 | 2 | R Osterthun | 6 | 3 | 3 | |||||||||||||||||||||
| R Osterthun | 7 | 6 | 4 | P Canè | 6 | 6 | 7 | ||||||||||||||||||||
| R Azar | 6 | 6 | Q | P Ballauff | 7 | 1 | 5 | ||||||||||||||||||||
| WC |  T Šmíd | 3 | 3 | R Azar | 4 | 4 | |||||||||||||||||||||
| Q | P Ballauff | 6 | 3 | 6 | Q | P Ballauff | 6 | 6 | |||||||||||||||||||
| 6 | A Gómez | 0 | 6 | 4 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | S Bruguera | 4 | 6 | 6 | |||||||||||||||||||||||
| Q | G López | 6 | 3 | 4 | 5 | S Bruguera | 6 | 7 | |||||||||||||||||||
 A Aramburu | 1 | 1 |  D Pérez | 3 | 6 | ||||||||||||||||||||||
| D Pérez | 6 | 6 | 5 | S Bruguera | 6 | 4 | |||||||||||||||||||||
| O Camporese | 6 | 5 | 6 | Q | P Vojtíšek | 7 | 6 | ||||||||||||||||||||
| U Riglewski | 3 | 7 | 3 | O Camporese | 1 | 0 | |||||||||||||||||||||
| Q | P Vojtíšek | 6 | 6 | Q | P Vojtíšek | 6 | 6 | ||||||||||||||||||||
| 3 | T Muster | 4 | 1 | Q | P Vojtíšek | 6 | 4 | 1 | |||||||||||||||||||
| 7 | G Pérez Roldán | 7 | 6 | 7 | G Pérez Roldán | 4 | 6 | 6 | |||||||||||||||||||
| J Čihák | 6 | 2 | 7 | G Pérez Roldán | 3 | 6 | 6 | ||||||||||||||||||||
| D Nargiso | 6 | 6 |  C Mezzadri | 6 | 3 | 3 | |||||||||||||||||||||
| C Mezzadri | 7 | 7 | 7 | G Pérez Roldán | 6 | 6 | |||||||||||||||||||||
| C Pistolesi | 3 | 6 | 7 | C Pistolesi | 4 | 1 | |||||||||||||||||||||
| J Wöhrmann | 6 | 3 | 5 | C Pistolesi | 7 | 6 | |||||||||||||||||||||
| Q | S Pescosolido | 6 | 6 | 6 | Q | S Pescosolido | 5 | 3 | |||||||||||||||||||
| 2 | M Jaite | 3 | 7 | 3 | |||||||||||||||||||||||
Michael Chang defeated Stefan Edberg in the final, 6–1, 3–6, 4–6, 6–4, 6–2, to win the men's singles tennis title at the 1989 French Open. Chang became the youngest-ever major men's singles champion, winning the final at the age of 17 years, 3 months and 20 days and the first player of Asian descent to win the major. En route to the title, he defeated the world No. 1 and three-time champion Ivan Lendl, which is remembered as one of the most significant matches in French Open history.
Mats Wilander defeated Henri Leconte in the final, 7–5, 6–2, 6–1 to win the men's singles tennis title at the 1988 French Open. It was his third and final French Open singles title. Leconte remains the most recent Frenchman to reach the final.
Jordi Arrese defeated Juan Aguilera 6–2, 6–2 in the final to secure the title.
Javier Sánchez defeated Guillermo Pérez Roldán 6–2, 7–6 to win the 1988 Buenos Aires Grand Prix singles competition. Perez-Roldan was the defending champion.
Tarik Benhabiles was the defending champion but lost in the second round to Thomas Muster.
Guillermo Pérez Roldán was the defending champion.
Ronald Agénor was the defending champion, but did not participate this year.
Henrik Sundström was the defending champion but did not participate this year.
Mats Wilander was the defending champion, but lost in the third round to Ronald Agénor.
Andrés Gómez was the defending champion, but lost in quarterfinals to Tomáš Šmíd.
Andrei Chesnokov was the defending champion, but lost in the second round to Fabrice Santoro.
Guillermo Pérez Roldán was the defending champion, but lost in the semifinals to tournament runner-up Juan Aguilera.
Andrés Gómez was the defending champion, but lost in the second round to Marcelo Filippini.
Miloslav Mečíř was the defending champion, but did not compete this year.
Wojciech Fibak and Miloslav Mečíř were the defending champions, but none competed this year.
The defending champion was Paolo Canè but he did not participate, in 1990. The fourth seeded, Richard Fromberg from Australia won the singles title.
Magnus Gustafsson successfully defended his title, by defeating Tomás Carbonell 5–7, 7–5, 6–4 in the final.
Goran Ivanišević was the defending champion, but lost in the second round to Andrés Gómez.
Dimitri Poliakov was the defending champion, but did not compete this year.
Thomas Muster was the defending champion, but lost in the quarterfinals to Guillermo Pérez Roldán.