GLENDALE, Ariz. – Los Angeles Dodgers reliever Brandon League was scheduled to undergo a contrast MRI on his ailing right shoulder Wednesday and will, barring a miracle, begin the season on the disabled list.

The Dodgers already are without closer Kenley Jansen until early May after Jansen had foot surgery just before camp opened.

League, 32, is coming off a strong season, including a 2.57 ERA in 63 games, and likely would have pitched the eighth inning, at least while Jansen is out. He had resumed throwing bullpen sessions but felt discomfort in his shoulder 15 pitches into Tuesday’s session, he said.

The Dodgers will await the results of the MRI before making any diagnosis.

“I think if it was serious I wouldn’t be able to pick up a ball,” League said. “It’s not painful, it’s just hindering. I know my body pretty well and I don’t think this is anything serious.”

League won’t even play catch for a few more days because he’s at risk to worsen the injury after the dye injection. That means his chances of breaking camp with the Dodgers are virtually nil. They have just 11 more exhibition games left before Opening Day, April 6.

“We haven’t been able to get on top of this, so it’s really just time to find out,” Dodgers manager Don Mattingly said. “You guys can do the math.”

The Dodgers stockpiled veteran relievers early in camp. League’s injury means Dustin McGowan and Sergio Santos have excellent chances of making the team.