Walker Has Surgery

[Lip Man 1]

Don't know if this is considered serious or not:

http://www.chicagotribune.com/sports/baseball/whitesox/chi-sox-prospect-walker-undergoes-surgery-on-shoulder-knee-20120921,0,7955939.story

Lip

[SoxSpeed22]

It looks like cleaning up some wear and tear from the season. I wouldn't be too worried about it.