Hamstring muscles are heavily involved in sprinting and stopping, and are particularly at risk of injury in sports such as soccer.

The hamstrings are three muscles located on the back of your thigh, and they’re responsible for bending your knee and extending your hip,” says Marissa Cummo, PT, DPT, assistant director of physical therapy at NYC Health + Hospitals Bellevue.

Trainers share their favorite ways to loosen up.

Add Yahoo as a preferred source to see more of our stories on Google. Continue reading to learn why you need a hamstring workout and which key exercises you need to do to build strong, resilient legs. We've got dumbbell hamstring exercises, bodyweight ...

The San Francisco Giants hope the injury won’t hinder this player’s ability to be ready to play on opening day.