Back in December, the Red Sox reliever underwent a procedure at Massachusetts General Hospital to remove bone fragment from his lower back. But Jenks, 30, continued to feel discomfort and recently had a second spinal decompression surgery to address the issue, The Boston Globe reported. WEEI also reported the news.
A former closer for the White Sox from 2005-10, Jenks is reportedly unlikely to be ready for spring training because the recovery from the second procedure could take as long as eight weeks.
Since joining the team last season, Jenks has battled a biceps strains, back stiffness and pulmonary embolism. As a result of the injuries, he was limited to 15 2/3 innings in 2011, tallying a 2-2 record with a 6.32 ERA.