A pulled muscle is an injury to your muscle fibers. Muscle fibers are the large cells that make up your muscles. Your muscles allow you to move when they contract and relax. Many people use the terms ...

OAKLAND, Calif. (AP) — Athletics ace Sonny Gray has been put on the 15-day disabled list because of a strained trapezius muscle near his right shoulder blade. Oakland made the move Sunday, two days ...

Your armpit, also known as the axilla, contains a large collection of lymph nodes, hair follicles, and sweat glands. A number of things can cause pain in the hollow created by your chest wall, muscles ...

WASHINGTON – The Nationals say pitcher Stephen Strasburg has been diagnosed with a strained left trapezius, an upper-back muscle where the arm meets the neck. Strasburg left Friday’s start at ...

OAKLAND, Calif. -- Athletics ace Sonny Gray has been put on the 15-day disabled list because of a strained trapezius muscle near his right shoulder blade. Oakland made the move Sunday, two days after ...