Grigor Dimitrov is a 21-year old Bulgarian tennis player ranked among the top 50 in the world.
But this up-and-comer sits atop a far more important list than the ATP ranking: he's number-one in the heart of Maria Sharapova!
Reporter Darren Rovell Tweeted on Saturday that Sharapova is "off the market" because she is dating Dimitrov, a rising star who has earned the nickname Baby Federer due to his fluid strokes and one-handed backhand.
That's an impressive accomplishment.
Not as impressive as the fluid strokes he is apparently earning from Sharapova... but still.
Maria , 25, was previously engaged to ex-NBA player Sasha Vujačić before the pair broke up in the spring of 2012.