Gio Gonzalez is scheduled to undergo a precautionary MRI on his left arm on Sunday. Gonzalez was shelled for five earned runs in three innings Saturday in a loss to the Mets and seven runs in 4 1/3 innings last Sunday against the A's. "You know, it's one of those things, you just got to keep grinding through," Gonzalez said Saturday when asked about his health. "Just trying to find out what it is. Hopefully, something positive comes out of it. Other than that, just try to stay positive." He's had shoulder issues in the past.