Matt Kemp strained his right hamstring on Wednesday night and the Los Angeles Dodgers made a quick decision to place the All-Star outfielder on the 15 day disabled list.The team called up catcher Tim Federowicz from Triple-A Albuquerque.“It’s just a mild strain,” Kemp said. “It’s something that can be worse, so you prevent it now. You don’t want it to linger the whole year. Get it taken care of right now.”While Kemp said that he only expected to be on the DL for 15 days, hamstring injuries can be very slow to heal.The Dodgers are looking for a new center fielder and the best prospect in the organization is Joc Pederson at Double-A Chattanooga. Yasiel Puig is another possibility.