Winning shriek? Bollettieri says talent speaks loudest

Some tennis players might be convinced they are onto a winning shriek but Nick Bollettieri, who coached the Williams sisters and Maria Sharapova, is not so sure.

"If grunting would win titles then everybody in the world would be grunting as loud as they can," the 83-year-old American said ahead of Thursday's Wimbledon women's semifinals.

"You have to have talent as well," said the man sometimes described as the originator of having players grunt and scream during play.