Serena Williams Upset by Nadia Petrova in Madrid

16 Nadia Petrova d 1 Serena Williams - 46 62 63

There's no denying Serena's return to the tour has been a little rough.

After Madrid & Rome she is 4-2 - 4 of the 6 have been brutal 3-setters (2-2).

Boy that Roland Garros title looks up for grabs, doesn't it?

This is #18 Nadia's third big scalp of the year:

She beat Kim Clijsters and Svetlana Kuznetsova both at the Australian Open.

Photo: Reuters