Twenty minutes at the start of practice could be the difference in having a full, healthy roster or a depleted roster with various ailments.

The 11+, a Players First resource helping to advance the Player Health & Safety pillar, consists of 15 exercises of running, strength, plyometrics and balance. It has been proven to reduce injuries in youth soccer players by 35-45 percent and reduce the severity of injuries by 20-30 percent.

Surely, you have 20 minutes to spare.

Physical therapist Holly Silvers, who has a PhD in biomechanics, became interested in ACL injuries after brother-in-law Tony Meola (yes, that Tony Meola) tore his ACL in 1999.

Not much longer, the 11+ (formerly FIFA 11+) was born. "If they'd had this program at the time, I wouldn't have had to go through what I did," Meola told Men's Health.

"It's an injury prevention program that we developed about nine years ago with a group of researchers from Oslo and a group of researchers from Zurich," Silvers said. "It's done prior to training or prior to a game. After you finish, you can resume training like you normally would.

The complete outline of exercises, as well was other helpful resources, can be viewed here.