Baseball Prospectus | Under The Knife: Bracing For a Return:
"So why the brace? The theory must be that the knee not only lacks cushioning, but that the cushioning has led to some laxity. If the joint is flexing a bit more than normal, the bruising would have a larger pattern. A brace could make that smaller or perhaps direct some of it towards an area where the knee is more cushioned or even just a bit less damaged. Beltran and his doctors seem to be doing everything possible to avoid the next step, which is microfracture surgery."
Say buh-bye in mixed leagues for 2010.