Top-ranked Jannik Sinner passed a big test in his return from a three-month doping ban, beating accomplished clay-court player Francisco Cerundolo 7-6 (2), 6-3 on Tuesday to reach the Italian Open quarterfinals.

ROME — 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.