Baltimore Orioles reliever Brian Matusz is undergoing an MRI on his back Thursday.
Matusz felt some back discomfort during his one inning of work in Wednesday's Grapefruit League game against the Braves. He gave up a home run, walk and double in that appearance.
The left-handed Matusz will be entering his age-29 season in 2016. He's coming off of a year in which he posted a 3.94 xFIP over 49 innings out of the bullpen.
Source: Rotoworld.com