Nationals say Stephen Strasburg has a strained flexor mass

WASHINGTON (AP) Nationals pitcher Stephen Strasburg has a strained flexor mass in his right elbow, and there is no timetable for his return.

Washington director of athletic training Paul Lessard says the injury is not season ending and the ligament Strasburg had repaired with Tommy John surgery in 2011 is unaffected.

Strasburg left his start Wednesday after feeling a pinch in the back of his elbow.

Manager Dusty Baker says the team was glad it is not a more serious injury.

Strasburg began the season 13-0 but went on the disabled list with an elbow problem last month. The 28-year-old's start Wednesday was his first since coming off the DL.

Lessard says the new injury is unrelated to the one that landed Strasburg on the DL.