I joined a fitness club so I can play squash against some of my colleagues. I've gone twice now. The first time I was sore for three days and last night I was doing alright until I slid and jacked up my big toe. I think my nail got caught in my sock and peeled back or something. It is a little painful, but nothing debilitating.
You can see the flesh under the nail is a weird color. I'm hoping the nail doesn't fall off, but we'll see.