Didn't see this coming (Wood)

Today it was announced that Kerry Wood was going to be going under the knife again, but not for his arm. Kerry wood is having surgery on his knee to repair a medial meniscus tear. They say it is minor and will only push him back 2-3 weeks. I don't know how wise it was for them to have him throwing today if he is going to have surgery in a few days. What if it affects his throwing motion and puts more stress on his arm? I guess that doesn't matter much.

I also love Hendry's quote, "Our stance is that if it's June 15 or July 7 and we're in the thick of the race and his knee acts up worse, then you have a problem. Then he tries to fight through the pain. Then if your knee is bothering you, it might affect your delivery. He's been through enough arm-wise that we're not going to take that chance."

Doesn't he reiterate what I said about the knee and affect his throwing, so why let him throw today? I am sure if he skipped throwing today wouldn't be a drastic set back, while the chance of Wood injuring himself is high.