Dodgers manager Don Mattingly told reporters Sunday that Juan Rivera is "on the positive side" of his recovery timetable from a ruptured left hamstring. It was feared at one point that Rivera might need surgery to correct the hamstring tendon rupture, but he's made swift progress and could be ready to return in a couple of weeks. The veteran outfielder is batting .247/.276/.358 with two home runs and 13 RBI in 25 games this year.