The Brewers placed on the 10-day injured list, retroactive to July 30, with a right hamstring strain. , from San Diego yesterday in the trade, has reported to the team. Lockridge jumps into right field and gets the nod at the top of the lineup tonight Ryan Braun Jersey against Nationals southpaw . Chourio suffered the injury on Tuesday against the Cubs. He drilled a ball off the center field wall and legged out a triple. Chourio pulled up as he approached third base, and while he neverthele s made it there safely, he was immediately replaced by pinch-runner . Manager Pat Murphy told reporters (including ) that the strain is more severe than initially anticipated. Hell certainly be out longer than 10 days, and Murphy left open the po sibility of a month-plus long absence. Milwaukee recently welcomed back from his own hamstring strain. Hell get the majority of the right field playing time, though hes out of the lineup tonight against the lefty starter Parker. Frelicks return had initially pushed Perkins into a fourth outfield role. Hes now in line for everyday playing time in center field. The switch-hitting Perkins mi sed most of the season because of a Spring Training shin fracture. He stole 23 bases with a .240/.316/.332 slash line a year ago. Chourios injury mightve played a role in Milwaukees decision to add the speedster Lockridge, a righty-hitting fourth outfielder without much offensive upside. Perkins is a capable stopgap, but he clearly has a much lower ceiling than Chourio offers. The 21-year-old is batting .276/.311/.474 with 29 doubles, four triples and 17 home runs. He was a bit inconsistent early in the year, but hed been on a tear (.367 with four homers and 12 extra-base hits) in July. The injury halts that hot streak and will cost him at least a few weeks as the Brewers battle the Cubs for the NL Central crown. They enter play Friday leading Chicago by a half-game and narrowly hold MLBs best record at 64-44. Rob Deer Jersey