The Tigers on Tuesday announced that outfielder Andy Dirks will undergo surgery on his lower back and is expected to miss the next 12 weeks. Here are some further details from MLive.com's James Schmehl:
Dirks first complained of back soreness two days ago and was checked by a specialist Monday. It was then recommended Tuesday he undergo microdiscectomy surgery, which will be performed by Dr. Thomas Tolli.
Dirks, 28, owns a career line of .278/.333/.418 against right-handed pitching (863 plate appearances), and he also grades out as a defensive asset in left. In contrast, Kelly, age 34, has hit .235/.295/.362 against the opposite side (793 plate appearances) over the course of his career. As you can see, the Tigers are likely to feel the affects of Dirks's absence.