
Gluten free winner —
Novak Djokovic has achieved even greater success since switching to a strict gluten free diet, cutting out wheat and chocolate.

Old school —
Bjorn Borg lifts the Wimbledon trophy in 1976, one of five straight wins at SW19. He relied on a diet of steak and potatoes during his incredible career.

Hearty breakfast —
Borg is seen tucking into the traditional English breakfast of bacon and eggs after being knocked out of Wimbledon in 1974.

Still going strong —
Eric Butorac (left) with doubles partner Raven Klaasen after winning the Malaysian Open title. Butorac has paid close attention to diet during his long career.

Special treat —
Even the most tempting dishes and pastries can now be served up in gluten free mode.

Cheers Andy —
2013 Wimbledon champion Andy Murray jokingly drinks a bottle of beer given to him by at an exhibition in Australia, but like other star players he has cut out alcohol altogether.

Champagne style —
Maria Sharapova enjoys the traditional champagne offering to winners at a tournament in 2012.

Banana staple —
Rafael Nadal and other star players eat copious quantities of bananas for quick energy release during long matches.

Pizza of the action —
Roger Federer makes a tradition of giving out pizza to the ballkids at the annual ATP tournament in his hometown of Basel but the Swiss star keeps to a strict diet in his preparations.