Jannik Sinner’s preparations for his US Open defence have been disrupted by illness after the World No 1 was forced to retire from his Cincinnati Open final against young rival Carlos Alcaraz, lasting just five games.
Sinner was clearly out of sorts on a hot day in Ohio and lost his serve three times before pulling out from the match. The 24-year-old apologised to the crowd and confirmed he started feeling ill the day before, with his condition worsening on the day of the final.
