Ouch

Leaving the gym a couple of days ago and hit my knee on a metal door.  It's one of those perfect hits, kind of like stubbing your toe.  It damn near knock me down.  Is been a couple of days and it's still bruised.  It's annoying because I couldn't hit it that perfect if I tried.  I'm taking today off from training to see if that helps at all.  Tomorrow is suppose to be nice so I'd like to spend a few hours on the trail.