Roger Federer wants to see more players like teenage phenom Cori “Coco” Gauff on the court.

In light of Gauff’s record-breaking Wimbledon — becoming the youngest player ever to qualify for the tournament and promptly beating Venus Williams on her way to the fourth round — Federer criticized the Women’s Tennis Association for age restrictions, which include how players 13 and under are not allowed to play in professional tournaments, while 14- to 17-year-old players can only play in a certain amount.

“I’ve told the WTA they should loosen up the rules,” Federer said, according to ESPN. “I loved seeing [Martina] Hingis doing what she did at a young age. I think it would be nice, you know, if they could play more. I feel like it puts, in some ways, extra pressure on them every tournament they play. It’s like their week ‘This is now where I finally am allowed to play, I have to do well,’ right? I’m not sure if it’s maybe to some extent counterproductive.”

First introduced in 1994, the WTA implemented restrictions as a result of Jennifer Capriati, a 13-year-old who surged on the scene in 1991 but later struggled. WTA restrictions indicate that players who are 14 can participate in eight professional events, only three when the prize money is over $60,000, while a 17-year-old athlete can compete in 16 events, with a little flexibility depending on their success.

As a 15-year-old, Gauff is permitted to play in 10 events, but given her recent success, can now play in 12. She has participated in eight since her March birthday.

Male players over the age of 16, however, have no restrictions.

“Maybe your best time [in a player’s career] is from 14 to 20 for some reason,” said Federer, whose Team8 management company reps Gauff. “It’s not like for everybody else from 20 to 30. So in a way you take away that opportunity, you know. It’s up to debate. I don’t have the perfect solution, I see why they did it, because we’ve had the history of some tough parents out there. But at the same time you’re also increasing the pressure for that player each week to produce.”

Regardless of how many events Gauff can compete in going forward, she just wants to win.

“I don’t know my schedule right now because I wasn’t expecting to be here,” Gauff told reporters after her loss to Simona Halep. “But my next goal would be to win the next tournament I play. I don’t know what the next tournament will be.”