Matt Garza will begin the 2013 season on the disabled list after experiencing recurring pain in his left side.

Garza felt a twinge in the injured area after trying to step up his soft-toss rehab program Saturday. He initially suffered the injury on Feb. 17 during the team's first week of spring training.

Dale Sveum hopes Garza will return to the rotation sometime in April.

"Hopefully this is not a real bad [side strain] where you can't sneeze or laugh," Sveum said. "I don't think it is that bad, but he is just not ready to throw a baseball yet. [The injury] didn't get worse; he is just not ready to step up any extra intensity."