Thanks for the advice. I am still avoiding movements that hurt, like walking at a normal pace, this is 5 days after injury. Moving around somewhat OK, but not ready to stretch or exercise it I don't think. It still "grabs" on me on occasion when walking.
Injury is on the outside of the hamstrings, maybe 3/4 of the way to the top, not near the knee. From what I've read, a type 2 strain. Also from what I've read, I would suspect imbalance betweed quads and hamstrings, what with the cycling. But I have had this injury in the past without the cycling, maybe soccer caused the original imbalance? Either way, it looks like I will need to pay more attention to strength and conditioning/stretching. I've scheduled a sports medicine appointment, but it is still over a week away.