Jared Burton out indefinitely

ST. LOUIS -- Reds reliever Jared Burton underwent arthroscopic shoulder surgery in Cincinnati and will be sidelined indefinitely.

The 29-year-old Burton began the season on the 15-day disabled list with shoulder inflammation and was transferred to the 60-day disabled list earlier this week. The operation was Friday.

Burton appeared in four games last season, working 3 1/3 scoreless innings, after spending the entire season with Triple-A Louisville. He appeared in 154 games the previous three seasons.