Maria wins in Montreal, but pulls out afterwards

Russia's Maria Sharapova withdrew from the WTA Rogers Cup Wednesday just moments after winning a marathon second-round match over Marta Domachowska.

The third-seeded Sharapova needed two hours, 56 minutes to beat the unseeded Domachowska of Poland 7-5, 5-7, 6-2 and then pulled out of the tournament with an injured right shoulder.

"Coming into this tournament I wasn't sure if I was going to be able to compete," Sharapova said.

"In the last few weeks I've been trying to find a solution to the aggravation I did to the shoulder back at Indian Wells in one of my matches. I haven't found the solution yet.

"I just spoke to a couple of doctors and they advised me to try to find the cause of the problem, what's causing my bursitis, because they think there's something else behind it rather than just that."

Sharapova was scheduled to play a third round match against Japan's Ai Sugiyama who was victory the win in a walkover. This was Sharapova's first match since her disappointing performance at Wimbledon.

After splitting the first two sets, Sharapova stepped it up and dominated the third set against Domachowska.

She won the first four games before her opponent got on the score board. They split the final four games of the match as Sharapova held serve in the eighth game to advance.

Sharapova was upset in the second round at Wimbledon by countrywoman Alla Kudryavtseva.

Sharapova is playing this hardcourt event for the first time since 2004, when she lost her opening match and fell to 1-2 at the Rogers Cup tournament.