Jannik Sinner wins Cincy opener on 20th birthday

No longer a teen star, Jannik Sinner celebrated his birthday in style Monday.

The 11th-seeded Italian beat Argentina's Federico Delbonis 6-2, 7-5 in the first round of the Western Southern Open in Mason, Ohio.

"For me the biggest present was playing in front of the crowd ... and getting the win makes it perfect," Sinner told Tennis Channel. "Winning is the cherry on top.

"Delbonis played well. He is a very tricky play