Wow Trevor, You had someone looking after you that day! Keep an eye on the thumb for sure, I had a detached tendon, called goalkeepers thumb... goalies get it a lot! After 6 months it wasn't better, and went to a hand surgeon and he knew right away what it was. Had it fixed, and it is almost back to normal now! I did low side again at the track, hurt the same thumb, but not as bad...
Charlie