Liriano rehab stint not working out as planned

According to an article on ESPN's website, Francisco Liriano's trip to rehab has not improved the condition in his throwing arm. The article additionally mentions Liriano's frustration, which would be expected, and his position for surgury. According to the Minneapolis Star Tribune it is unclear if Liriano will need Tommy John surgery. Here's the link to the ESPN article:ESPN

I am definately hoping this is not the case. I wish him only good luck, not the type of luck Kerry Wood or Mark Prior have had.