Jannik Sinner was visibly emotional as he retired just five games into the Cincinnati Masters final against Carlos Alcaraz, sparking concern ahead of his US Open title defense.
A rampant Carlos Alcaraz blitzed through his Round of 16 opponent Luca Nardi to reach the last eight of the Cincinnati Masters on Thursday.
Jannik Sinner continued his superlative record on the hard courts, while Frances Tiafoe was forced to retire at the Cincinnati Masters on Wednesday.
Carlos Alcaraz crushed Hamad Medjedovic 6-4, 6-4 at the Cincinnati Masters on Tuesday, becoming the first player in 2025 to reach 50 match wins.
Rivals Jannik Sinner and Carlos Alcaraz lead the Cincinnati Masters men's singles draw this week.
Carlos Alcaraz needed a three-set thriller to defeat Tommy Paul and reach the quarter-finals of the Western and Southern Open in Cincinnati.