Hot gossip: New boyfriends for Serena and Venus Williams. Breakups for Sharapova and Jankovic

Last week, some photos of Serena Williams and French Patrick Moratoglou hit the web. Moratouglou, 42, is the head of Moratoglou Tennis Academy, where Serena trained after the French Open, and has been in Serena's team since then as an advisor. But the pictures of the couple walking arm in arm in Paris suggest that their relationship is more than professional.

Also, according to People magazine, Venus Williams has been dating Cuban model Elio Alberto Pis, 8 years her younger, for several months. During the US Open, Pis was supporting Williams together with her family and friends, and the couple was spotted holding hands and kissing.

But as some relationships begin, others come to an end. During the a press conference US Open, Maria Sharapova recognized that she was no longer engaged to basketball player Sasha Vujacic. In fact, Sharapova said her relationship with Vujacic had been over "since the end of spring". The couple had been dating since 2009 and engaged since October 2010.

Also Serbian media has reported that Jelena Jankovic has ended her four-year relationship with Mladjan Janovic, waterpolo player from Montenegro. The couple met at the 2008 Beijing Olympics.