Dodgers outfielder Matt Kemp has been shut down "indefinitely" after experiencing tightness in his right hamstring while on a minor league rehab assignment. He missed more than three weeks with a right hamstring problem earlier this season.

Kemp 28 is currently on the DL with an ankle sprain. He was expected to rejoin the team earlier this week but his rehab assignment was extended because he didn't feel comfortable at the plate. In five rehab games with High Class-A Rancho Cucamonga Kemp went 0-for-18 with seven strikeouts.

A hamstring problem cost Kemp more than two months last season but that was on the left side. In addition to the hamstring and ankle injuries he also spent time on the DL with a sore shoulder this summer. Kemp had surgery on the shoulder over the winter.

This has been a disaster year for 2011 NL MVP runner-up. Kemp has hit just .263/.319/.382 (97 OPS+) with five home runs and nine stolen bases in 62 games around all the injuries this summer. He is in the second year of an eight-year $160 million contract.