The world No. 1 was rusty on his first match back after three months away. His Italian Open draw means he cannot afford to be so for long.

Jannik Sinner passed a big test in his return from a three-month doping ban, beating accomplished clay-court player Francisco Cerundolo on Tuesday to reach the Italian Open quarterfinals.

Italy’s Jannik Sinner serves the ball to Netherlands’ Jesper De Jong during their tennis match at the Italian Open at the Foro Italico, in Rome, Monday, May 12, 2025. (AP Photo/Alessandra Tarantino) Italy’s Jannik Sinner returns the ball to Netherlands’ Jesper De Jong during their tennis match at the Italian Open at the Foro Italico,

Here's all you need to know about the Jannik Sinner vs Casper Ruud ATP Italian Open 2025 men's singles quarterfinal clash between - preview, head to head and live streaming details

Jannik Sinner came through the first true test of his comeback from a doping ban with Tuesday's straight-sets win over Francisco Cerundolo which took the world No. 1 into the Italian Open quarterfinals.

Jannik Sinner is still regaining his focus on the tennis court after his three-month doping ban. The world No. 1 overcame a brief lapse during the first set of a 6-4, 6-2 victory over No. 93 Dutch qualifier Jesper De Jong in his second match back on tour in front of his home crowd at the Italian Open on Monday.