
Dr. Jerry Bornstein checks the knee of Canoga Park High player Luis Larios at a game in Canoga Park. Bornstein estimates that he has worked about 1,000 games over the years. (Wally Skalij / Los Angeles Times)

At Canoga Park High, Dr. Jerry Bornstein talks with assistant trainer Leanna Weir. (Wally Skalij / Los Angeles Times)

Arleta High School player Manny Guzman gets some counsel about his dislocated shoulder from Dr. Jerry Bornstein. (Wally Skalij / Los Angeles Times)
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Bornstein checks the finger of

Bornstein observes as players from Arleta High carry a teammate off the field. “I watch a game differently than most people,” he says. (Wally Skalij / Los Angeles Times)

Canoga Park player Miguel Rodriguez sits with an injured hamstring as Bornstein talks with coaches. (Wally Skalij / Los Angeles Times)

Bornstein is the last one to walk off the field after checking for injuries after a game at Panorama High School. (Wally Skalij / Los Angeles Times)