Keller, Feliz exit early with injuries

Mitch Keller pitches Saturday night in Chicago. - GETTYCHICAGO -- Pirates starter Mitch Keller and reliever Michael Feliz were both removed from the game with injuries in the Pirates' 4-3 loss to the Cubs Saturday night.

Keller was removed with left side discomfort, and Feliz with right forearm discomfort.

"They're still being evaluated right now," Derek Shelton said after the game. "So I think we'll probably have more information tomorrow [Sunday]. As these things happen, the first night, we have to make sure they get evaluated."

Keller's 51st pitch of the night bounced on the grass, and it turned out to be his last. Keller signaled to the Pirates' bench after he threw it to bring head…