X-rays have not been scheduled, but the left-hander's status for the second game of the regular season against the Rays in St. Petersburg, Fla., is unknown.
Manager Buck Showalter told reporters that Matusz threw 29 pitches before being hit. The game ended after that incident.
Showalter said that Zach Britton, who is expected to be optioned to Triple-A, would be a candidate to replace Matusz if the injury is deemed serious enough to necessitate changes in the rotation.
More to come.