Staying Injury-Free - Foam Roller Stretches

I used my free personal training appointment today at the gym to talk to a trainer about staying injury-free during our year-long challenge. He showed me some really good stretches to do on the foam roller to help work the knots out of my legs and keep them healthy. This video shows the majority of the stretches he showed me, and I'm really excited to start utilizing them. He recommended stretching before and after a cardio workout or run.