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 is still regaining his focus on the tennis court after his three-month doping ban. The top-ranked player overcame a brief lapse during the first set of a 6-4, 6-2 victory over Dutch qualifier Jesper De Jong in his second match back on tour at the Italian Open on Monday.