OK, yes, most Crossfit injuries are of the lower back/over-doing it variety. But, this is what I did to myself yesterday:
That’s from trying to do double-unders, where you jump rope and get the rope under your feet twice in one jump. The problem was as I got tired I started to miss. And when you’re trying to get the jump rope around twice you have to whip it hard. The result is what you see.
After hitting myself three times, I actually got really good and was better than all the boys by the end of class. And isn’t that what Crossfit is all about.
It might be hard to tell here but my third finger is jammed and swollen. I have no idea what I did.
Which is sort of how Crossfit injuries work.
Kelly O'Mara 
[…] was done in partner teams, male-female, and as a team you had to do 50 chest-to-bar pull-ups, 100 double-unders with the jumprope, and then run a mile together. I mostly did my half of the pull-ups and then […]