Jul 06, 2010 8:55 AM EST

The Mariners won't have Erik Bedard on the mound Tuesday night against the Royals after all.

Bedard had "discomfort" in his surgically repaired left shoulder after a bullpen session in Tacoma on Saturday.

"He says he's still feeling a little bit of discomfort in his shoulder," manager Don Wakamatsu said. "It crept up on him in his last bullpen."

Via News Tribune