CINCINNATI: Carlos Alcaraz won the ATP Cincinnati Open title on Monday after defending champion Jannik Sinner retired due to illness in the first set.

The defending champ pulls out with illness, raising questions about his preparations before next Sunday's US Open.

The defending champ pulls out with illness, raising questions about his preparations before next Sunday's US Open.

An emotional Jannik Sinner retired from the Cincinnati Open final against Carlos Alcaraz with illness, only six days before he begins his US Open...

An emotional Jannik Sinner retired from the Cincinnati Open final against Carlos Alcaraz with illness, only six days before he begins his US Open...

CINCINNATI (AP) — Carlos Alcaraz won the Cincinnati Open title in a little more than 20 minutes on Monday after top-ranked Jannik Sinner was forced...

CINCINNATI (AP) — Carlos Alcaraz won the Cincinnati Open title in a little more than 20 minutes on Monday after top-ranked Jannik Sinner was forced...

Defending champion Sinner, who was looking out of sorts in the sweltering heat, called for the doctor after surrendering a 0-5 lead in the opening set...

Defending champion Sinner, who was looking out of sorts in the sweltering heat, called for the doctor after surrendering a 0-5 lead in the opening set...

Jannik Sinner's US Open preparations are heading down the right path with the defending champion through to the Cincinnati Open quarters.