The ATP Finals are in full swing and two more tasty fixtures are set to be played out later today (Thursday). Alexander Zverev beat Casper Ruud last night, with Carlos Alcaraz defying his recent bout of illness to defeat Andrey Rublev in straight sets.

Jannik Sinner tested positive twice for an anabolic agent in March, but avoided a ban after an independent tribunal accepted his defence.

A final verdict in the doping case involving Jannik Sinner likely won’t come until early next year. For the president of the Italian tennis federation, though, the case has already been won — in the court of public opinion.