World number one Jannik Sinner may take time to hit his stride on his return from a three-month doping ban next month but will be in top form when he heads to the French Open, Italy's Davis Cup captain Filippo Volandri said.

Serena Williams has highlighted the perceived double standards surrounding men’s world No. 1 Jannik Sinner’s doping ban, saying in a new interview with Time magazine that she would have been suspended for 20 years for a similar offense.

Jannik Sinner was hit with a three month ban for doping earlier this year but plenty thought the punishment was lenient with Serena Williams making her feelings clear