Maria Sharapova will miss the Beijing Olympics because of a right shoulder injury.

The three-time Grand Slam singles champion said on her Web site Thursday that an MRI exam and other medical tests showed she has two small tears in tendons in her shoulder.

The right-handed Sharapova pulled out of the WTA tournament in Montreal because of the shoulder on Wednesday night — after winning a nearly three-hour match in which she double-faulted a whopping 17 times.

The Aug. 11-17 Olympic tennis tournament lost another top player earlier Thursday, when 2006 Australian Open runner-up Marcos Baghdatis of Cyprus withdrew because of a wrist injury.

Others who won't play in Beijing for various reasons include past Grand Slam singles champions Andy Roddick, Amelie Mauresmo and Mary Pierce.

By skipping the Olympics, Sharapova will have more time to rest ahead of the U.S. Open, which begins Aug. 25.