A few photos of Bulgaria's top male tennis player Grigor Dimitrov at the Olympic Games in Longon have fueled claims there may be some truth in the rumors of his relationship with Serena Williams.

Photographers seized the chance to take pictures of the two tennis players close to one another and talking while in the mix zone right after Grigor's disappointing defeat to Frenchman Gilles Simon.

Local media was quick to comment that Serena Williams has tried to cheer up the young man, who admitted the loss is a huge disappointment for him.

The young Bulgarian from Haskovo, close to the borders with Greece and Turkey, has repeatedly laughed off rumors over his relationship with Serena Williams, making it clear he wants to hit the headlines because of his career, not because of his private life.

It is a fact however that the 20-year-old has become a high-profile name at recent tournaments due to his great play, as well as the growing obsession over the nature of his relationship with Serena Williams, who has been spotted courtside at his matches.

"Just go and ask her," Dimitrov replied with a smile to Bulgarian journalists' questions on that topic in May.

Dimitrov is a former world No1 junior who won both the Wimbledon and US Open titles in a stellar 2008 before making the immediate decision to concentrate on the senior circuit.