Reds' John Lamb: Undergoes surgery to repair herniated disc

Lamb (back) underwent surgery to repair a lumbar disc herniation Tuesday, Mark Sheldon of MLB.com reports.

Analysis:

It's unclear what kind of timetable the left-hander is facing, but he is not expected to be ready for Opening Day. Lamb has experienced his fair share of injury issues in the past, short-circuiting what was once a promising career. His return date should become clearer as he progresses through his rehab process.