After playing basketball Tuesday night, I noticed that my right calf was a little sore on Wednesday.  I assumed it was just a normal bruise or sore muscle.  Saturday night around 9:30 PM, I stood up and it hurt much worse.  I reached down to touch it and felt a big bulge on the side calf.  I pushed on it, felt it move like a big bubble of fluid, and a sharp pain.  I tried to go to urgent care, but it was closed, so I went to the emergency room.  They thought it was a hematoma but did an ultrasound of my legs to make sure there wasn't a clot.  I got home around 1 AM.  The next day I walked around of crutches (called "crunches" by Finn), and by Saturday I was walking fairly normally but gingerly.  I don't remember getting kicked or anything traumatic in the basketball game, but maybe it was just too much running, jumping, and landing for an old man.