[nickrego]

Stretching doesn't prevent soreness.

Being in shape prevents soreness.

You should be doing a full complement of Runner's stretches, 5 times a week, especially before a game. You can do an Internet search to find a good routine you can fit into your schedule.

Aside from that, you should be running or riding a bike 3 - 5 times a week. And don't forget weight lifting. Nothing burns fat faster, not even running.