Serena Williams Boyfriend 2013: Patrick Mouratoglou Prefers Blondes? American Tennis Star Reveals She Changed Her Hair

Serena Williams recently revealed on Twitter that she dyed her hair blonde, leaving many fans wondering if she made the change for coach and rumored boyfriend Patrick Mouratoglou.

"Can we see a photo of your new hair?!!!" a fan Tweeted at Serena Williams last week. "Soon soon! I'm really blond now!!" she responded.

Rumors of Serena Williams' alleged retirement might have been silenced after she announced at a press conference in Turkey this week that she's looking for another title.

"I am interested for next year to take my game to a new level, which I think I can do," she said.

"Even if I got to 23 Grand Slams, it would be very hard, you know, with so many wonderful players, especially now. There are so many great new players coming up. Everyone is so young, everyone is so hungry, everyone wants to be the next number one."

But Serena Williams' rumored retirement isn't the only thing fans are talking about.

Serena Williams' coach and rumored boyfriend mentioned that she "still has a margin for improvement that is enormous," reaffirming his rumored longtime commitment to her tennis career.

He also revealed during an interview with the New York Times that she is perhaps one of the best tennis players he has coached, leaving many wondering if he'll stay with her until retirement.

"Serena will never drop her guard. She will stop perhaps, but she won't drop her guard. She won't be 50th in the world, that's for sure. She wouldn't accept it from herself. It's not the style of the maison," he told the New York Times.

"It can't hurt, that's for sure. For sure it helps. She told me all the trophies we win when we work together we'll put them in the academy. They are in the entry. We reorganized. We made a big room like a players' lounge in the entry with the bar and put a trophy case there, which is already full."