The Chargers and Rams are feeling generous — to the benefit of high school football programs across the South Bay and Long Beach areas.

The two Los Angeles NFL teams will donate $50,000 each to the West Coast Sports Medicine Foundation and Team HEAL on Saturday, July 20, during a presentation at Mira Costa High School, in Manhattan Beach.

That money, part of the NFL Foundation’s Athletic Trainer Program, will help pay for full-time and part-time certified athletic trainers and other resources to high school football programs that lack them.

The NFL Foundation will also donate a matching contribution of $100,000 toward the initiative.

West Coast Sports Medicine Foundation, a Manhattan Beach research and education foundation, supports 23 schools — which serve around 13,000 students athletes — in Long Beach, Compton, Carson, Lawndale, Torrance, Hawthorne and elsewhere in the region.

Team Heal, a Los Angeles-based foundation, serves around 2,500 student-athletes at Banning, Dorsey, Carson, Crenshaw, and Westchester high schools.

The founders of both Team HEAL and West Coast Sports Medicine Foundation will be on hand during the check presentation.

Dr. Clarence Shields, a sports medicine orthopedic surgeon at Cedars-Sinai, is the founder of Team Heal. Dr. Keith Feder, medical director of the West Coast Center for Orthopedic Surgery and Sports Medicine, is the founder of West Coast Sports Medicine Foundation.

The head athletic trainers for both the Chargers and Rams, as well as former players from each team, will speak to local students before the presentation. They will share with students their career experiences; the various roles and positions of an athletic training staff; and the importance of athletic training and fitness in both sports and life.