Swimmer Health: Knee Ligaments & the pool

Despite the relaxation of vacation, I was looking forward to returning home, as I had a hockey game on Monday evening against a team we don't like all that much (they're a beginner team that somehow has folks who've played before). Anyways, 1st shift, I end up taking one of their defenders into the boards behind the net. It was an ugly pile. Nothing exciting to report. 2nd shift, I end up falling, right skate first, towards the wall after a puck. Ouchy Wouchy goes the knee. I could barely get around on tuesday, and went to see a friend of mine who is an AT. She did her bending, pushing, pulling, etc., and said its probably something with the MCL or a meniscus. Spent half of my birthday waiting in the doctors office the next day, and he told me the same thing. Then spent most of today getting an MRI and waiting in the doc's office again. The verdict: MCL sprain. Phew. So its crutches, brace and PT for a few weeks. No surgery. No massive braces. September off for sports. So here's where you come in... Anyone had some knee ligament issues in the past? Any advice, at least as it pertains to PT and then getting back in the pool? Stud - looks like you'll be smoking me in breaststroke this year...