
It's Maria Sharapova's 'least favorite place in the world"

But locker rooms are where tennis matches can be won and lost ...

Rafael Nadal of Spain poses in the locker room with the Coupe des Mousquetaires trophy at Roland Garros in 2014.

As well as a place of preparation for matches, locker rooms are also a perfect setting for posing for photos after winning trophies. Novak Djokovic is pictured holding the Butch Bucholz trophy after winning his fifth Miami Open title in 2015.

As the old saying goes: "By failing to prepare, you are preparing to fail." Jo-Wilfried Tsonga is pictured warming up at the Hamdan Sports Complex in Dubai in 2014.

Victoria Azarenka of Belarus is pictured at Crandon Park Tennis Center at the Miami Open. Azarenka, who also isn't competing at Roland Garros, recently hinted in a tweet this week she would play at Wimbledon later this year after intending to make her own comeback -- the Belarussian gave birth to son Leo in December and hasn't played since last year's French Open -- at a Wimbledon warmup tournament.

Another absentee from the French Open is Sharapova, who was denied a wild card by the tournament organizers.

Serena Williams will miss the 2017 French Open as she's on maternity leave. Last month her publicist confirmed Serena is expecting a child with her fiance, Reddit co-founder Alexis Ohanian, and is due to give birth in the fall.

"There is such a thing as locker room power," former British Davis Cup player Arvind Parmar told CNN Sport. Here Frenchman Tsonga of the Manila Mavericks gets ready in the locker room before his team's match against the Singapore Slammers during the Coca-Cola International Premier Tennis League at the Mall of Asia Arena in November 2014.

Stanislas Wawrinka of Switzerland is pictured posing with the Norman Brookes Challenge Cup in the players' dressing room after winning his men's final match against Nadal of Spain at the 2014 Australian Open at Melbourne Park.

Access is normally restricted to players and coaches only, though exceptions can be made. Real Madrid icons Cristiano Ronaldo (L) and Raul are pictured posing with Nadal during the Madrid Masters in May 2010.

Britain's Andy Murray heads back to the locker room after finishing a practice session at Wimbledon.

London's Queen's Club's dressing room decor has a more old school feel.

Success = champagne celebration in the dressing room. Djokovic is pictured celebrating after winning 2008 Australian Open final against Tsonga in 2008.

Switzerland's Roger Federer is filmed by a TV crew holding the Wimbledon trophy as he enters the dressing room after beating Andy Roddick of the US in the 2009 final. Federer has opted not to play at this year's French Open.