Chicago Cubs pitcher Matt Garza will undergo an MRI to determine the extent of a lat injury he suffered to the left side of his body.

"It's probably difficult for the doctors and trainers to get a sense of the degree just by feeling it," general manager Jed Hoyer said on Monday. "There's really no accurate news today, we have to wait and see. The good news is his arm feels good."
Garza hurt himself on Sunday in his first throwing session against hitters. He threw 20 pitches before feeling "something" in his left side that he initially thought was a cramp. He threw one more pitch before exiting practice.

"The good news is his arm felt really strong. He was throwing well. It was unfortunate, for sure, it's going to set him back a little bit ... At this point it's a little bit of a wait and see."