SYDNEY -- Tennis great Chris Evert has joined the chorus of complaints about the noise level in women's tennis, saying the "grunting" was getting out of hand.

Evert stopped short of joining former rival Martina Navratilova in labelling the practice as cheating, but agreed it had reached unacceptable levels.

Evert

"Grunting is one thing but the shrill sound that you hear with players nowadays, and especially they get louder when they hit a winner, that's the thing that I observe as a player," the former world No. 1 told reporters in Sydney on Monday.

"It comes before they hit the shot. That's the first thing you hear and you are kind of like thrown off guard as a player and then before you know the ball gets past you."

"The next time you watch say a Maria Sharapova -- the grunting is consistent but all of a sudden when she has a set up to hit a winner.

"I don't understand, they say you've got to blow air out when you hit the ball.