Maria Sharapova will sit out the U.S. Open because of a bad right shoulder, the first major championship she'll miss since her Grand Slam debut in 2003.

The three-time Grand Slam title winner already had announced she's pulling out of the Beijing Olympics because of the injury. Sharapova said in a posting on her Web site Friday she probably won't need surgery and could be ready to play in two to three months.

"It hurts me so much to miss the Olympics and the U.S. Open, you have no idea," she said. "Just to type those words hurt!!"

After Maria pulled out of Montreal we were already affraid of it, but now it is official. Maria will not be playing the olympic games, which start late next week. On her official website she wrote a couple of words to explain what is exactly her injury. Here is what she had to say.

MARIA SHARAPOVA
After yesterdays match I knew there was something seriously wrong with my shoulder. After taking a few different exams and MRI's this morning, the doctors found two small tears in the tendons of m...

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.

Maria will begin her Montreal campaign under the lights on Wednesday.  Maria will play Marta Domachowska of Poland at 19.30 Eastern time on Stadium Court.

Maria has played Domachowska once before in Seoul on hardcourts in 2004.  Maria won 6-1 6-1.

Maria attended the WTA Tennis fashion on Sunday evening which is part of the Rogers Cup Tennis Tournament at the Fairmont Queen Elizabeth Hotel alongside the other players in the draw.