Left-handed reliever Brian Matusz's status for Opening Day is in jeopardy, as manager Buck Showalter said Matusz had a cortisone shot following his outing on Sunday.
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"We decided to inject that to clear it up completely," Showalter said of a low back injury that has been hampering Matusz this spring. "It might push him back a day or two with his outing, but we're hoping that manages it."
Matusz felt the injury during his first spring outing.
Catcher Matt Wieters, slowed by a sore elbow, threw off flat ground on Tuesday up to 90 feet. It was his second throwing session since feeling the soreness.
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.