The teres major is one of two muscles in the back of the shoulder responsible for slowing the arm down at the end of a pitching motion. The other muscle is the much larger latissimus dorsi ...

Guardians right-hander Triston McKenzie has been diagnosed with a strain of the teres major muscle in his throwing shoulder, the club announced. He’ll be shut down from throwing for at least ...

The teres major is a small muscle that runs along the border of the scapula. The Mets signed the reigning American League Cy Young winner to a two-year, $86.7-million contract in December.