Matusz said getting the procedure as soon as possible will allow him to get a jumpstart on rehab and have a fairly regular winter. He also said the injury, which started in Spring Training, didn't impede him on the mound.
"[A Cortisone injection wore off] shortly after the All-Star break, but it wasn't anything that hindered performance on the field," Matusz said. "If anything, it resulted in backing off workouts. Basically we restructured workouts around the shoulder."
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, follow her on Facebook and Twitter @britt_ghiroli, and listen to her podcast. This story was not subject to the approval of Major League Baseball or its clubs.