NEW YORK—Alexander Zverev exited the US Open fourth round with parting shots for his peers.

The ATP Finals champion said both Daniil Medvedev and Stefanos Tsitsipas have crossed the sportsmanship line with some of their on-court antics.

Medvedev: I Was an Idiot

Asked his reaction to Medvedev's sometime antagonistic post-match interviews trolling fans following recent victories, Zverev had a message for both young rising stars: Let your racquet do the talking.

"You don't need to do things to distract the opponent, try to win that way," Zverev said after his fourth-round loss to Diego Schwartzman. "Medvedev is obviously going over the line a little bit now. But he's winning. He's in the quarterfinals. He's playing Stan (Wawrinka)."

Medvedev, who knocked off world No. 1 Novak Djokovic en route to his first Masters 1000 title in Cincinnati last month, has incurred $19,000 in fines for his behavior at the Open.

"At the end of the day it all doesn't matter if you're winning," Zverev said. "But, yeah, I hope some of the NextGen or the young guys will kind of learn from the older guys like Roger and Rafa who have been unbelievable over their career, really let their racquet talk for them, not try to distract opponents, something like that."

The sixth-seeded German suggested Tsitsipas' habit of changing shoes is a tactical tool to throw disrupt an opponent's rhythm.

"I think a lot of the times Tsitsipas gets over the line with changing his shoes 15 times in a tournament, going to the bathroom in the middle of a set," Zverev said. "Stuff like that... Let your tennis racquet talk for you kind of."

Photo credit: John Martin