World number one Jannik Sinner said the support and friendship he received from Jack Draper during his three-month ban for a doping violation gave him the positive energy he needed to make it through a difficult period.

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.