NEW YORK (AP) — Roger Federer thinks Jannik Sinner's doping case raises questions about whether the current No.

NEW YORK (AP) — Roger Federer thinks Jannik Sinner's doping case raises questions about whether the current No.

NEW YORK (AP) — Roger Federer thinks Jannik Sinner's doping case raises questions about whether the current No.

NEW YORK (AP) — Roger Federer thinks Jannik Sinner's doping case raises questions about whether the current No.

Roger Federer says Jannik Sinner's doping case raises questions whether the world No.1 should have been allowed to continue competing.

The World Anti-Doping Agency (WADA) has refused to appeal the acquittal of world number one Jannik Sinner. This was reported by Corriere della Sera....

The US Open champion Jannik Sinner was cleared of all charges following his positive drug test, but the World Anti-Doping Agency still has three weeks...

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The World Anti-Doping Agency has yet to decide whether to appeal the decision to exonerate U.S. Open champion Jannik Sinner of blame for his positive...