NEW YORK -- Tests on Mets closer Billy Wagner's left shoulder showed he has muscle spasms around the joint. His availability for New York's first-place matchup with the Philadelphia Phillies on ...

OAKLAND, CA - MAY 26: Derek Jeter #2 of the New York Yankees hits a single that scored Eric Chavez #12 in the third inning against the Oakland Athletics at O.co Coliseum on May 26, 2012 in Oakland, ...

Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp. Muscle spasms are common and typically don't signal a severe health ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The shoulder is the most commonly dislocated ...

Shoulder arthritis is a debilitating condition that affects millions worldwide, characterised by the progressive degeneration ...

Posterior shoulder dislocation occurs when the top of the upper arm bone, known as the humerus, moves backward out of its socket. This causes pain, muscle spasms, and a limited range of motion. The ...

PHILADELPHIA — Freddie Freeman hadn’t even finished running around the bases in the first inning after his three-run bomb ricocheted off the Budweiser sign hanging from the second deck in right field ...