Future USC tight end Keyan Burnett went FULL DK Metcalf mode in a game last week ... chasing down an opponent 100 yards to make a touchdown-saving tackle!!!
The insane play all went down in Southern California in Servite High School's game against Damien last Friday ... when Burnett's squad needed him to make a super-human play to save 7 points.
A Damien player scooped up a fumble at the 11-yard line and looked poised to rumble 89 yards to turn a 13-0, 1st-quarter deficit into a 13-7 ballgame.
But, Burnett -- a 6'5", 210-pound 4-star recruit who committed to play for the Trojans earlier this month -- turned on the jets and hunted the ball carrier down!