Geoff Baker of the Seattle Times brings the news:
Stephen Pryor has been on the disabled list since suffering a lat muscle injury while pitching for the Mariners back in April. But today, he’s been shut down for the remainder of the year with a new and completely different injury to his triceps.
Pryor suffered that triceps injury this weekend while warming up for a rehab start at Triple-A Tacoma. He had an MRI on Saturday and Mariners GM Jack Zduriencik told the Times that Seattle’s medical staff “really didn’t like what they saw.”
Pryor tossed 7 1/3 scoreless innings of relief this year for the M’s. He’ll be a pre-arb player in 2014.