How it happened...a friendly match

I took my son to a park where he was going to play soccer with friends.  It was a Latino crowd with friends from different central American and south American countries and their families.  I had not played soccer in years but being from Argentina how could I say no.  So we selected teams and there we went.  Everybody was playing, the youth, the moms, the grandmas, so nothing bad could happen, right? ... WRONG!  First game...probably second play of the day...the ball came nearby to my front and I run towards it.  Immediately, I felt a kick in my left Achilles tendon and down I went.  Since the ball was in front of me and I was kicked from behind nobody saw anything.  As I rolled down the ground the playing continued until they noticed I was not getting up.  "What happened?...Did you twisted your foot?" they asked.  "No, I think somebody kicked me" I murmured while trying to feel my left foot that was completely numb. I tried to get up and was helped to the side as the game continued.  After a while the sensation in my foot returned and I got some ice and tried to prevent swelling. That was a lost cause because my calf swelled up quickly and became hard as a rock.  At the meeting there was a retired medical doctor.  He checked me and said that my tendon did not appear to be ruptured and that I would be fine.  Because I could hardly walk, my son helped me get to the car and I drove back home.