It's also the 12th time in Djokovic's career that he's won five or more titles in a season, a new men's Open Era record.

Jessica Pegula and Taylor Fritz will lead the defending champion U.S. squad.

Mannarino might seem like he's in over his head here, but the lefty is scorching hot and has the type of game that can frustrate Rublev.

The 35-year-old Frenchman prevailed, 4-6, 6-3, 6-2, to win his first indoor trophy Tuesday.

Tweener alert! (But, seriously, this one's worth your time.)

Mackenzie McDonald, Donna Vekic and Dusan Lajovic also threw in the towel Thursday at the Western & Southern Open.

Having struggled with a knee injury that threatened to derail his season, the Canadian returned to his winning ways after rallying from a set down against Matteo Berrettini.

No. 2 seed Mannarino defeated the 18-year-old in straight sets to win the Hall of Fame Open.

"Of course it's a real injury," the Russian insisted to the chair umpire, as he tried to get his second-round match suspended due to bad light. "For me, it's real."

The world No. 2 improved to 8-0 in quarterfinals this year and scored another milestone with his first Top 30 win on grass.