Squash injury

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.