Phillies’ David Herndon undergoes Tommy John surgery

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From Todd Zolecki of MLB.com comes word that Phillies reliever David Herndon underwent Tommy John reconstructive elbow surgery on Tuesday.

The 26-year-old right-hander claimed a spot in the Philadelphia bullpen this spring by fanning 14 batters in 16 1/3 Grapefruit League innings but strained his flexor pronator muscle at the end of April and hasn’t been off the disabled list since. He can now be ruled out through the first few months of the 2013 season.

Herndon registered a solid 3.32 ERA in 57 innings of relief last season. He owns a 3.85 career ERA.