Brewers outfielder Sal Frelick will undergo an MRI Saturday after he left Friday’s game with a left hip injury. While chasing a foul ball in the third inning of Milwaukee’s 8-4 win over the Mets, Frelick slammed into the wall down the right field line, specifically landing within a cutout area of the otherwise padded wall. Frelick was in a lot of discomfort as he gingerly left the field.