Brewers put Ramirez on 15-day DL
The move was made Saturday after an MRI confirmed the two-time All-Star sprained his left knee sliding into second base Friday night during Milwaukee's 3-1 loss to Arizona.
Ramirez, who was 5 for 13 with three doubles in the first four games of the season, sustained a similar injury during spring training and missed two weeks.
Brewers manager Ron Roenicke says he hopes Ramirez will be ready to come off the DL after 15 days.
Josh Prince was called up from Triple-A Nashville to fill the roster spot. Prince batted .251 with Double-A Huntsville last season and went 4 for 30 during spring training with the Brewers while being groomed for a utility role.
In addition to Ramirez's injury, the Brewers were without slugger Ryan Braun for the second consecutive game due to neck spasms. Braun is day to day.