Read it, pick the danger, and clear. Scan both runners, judge which the ball is for, track him goalside, and head it clear.
Two attackers make near- and far-post runs; the lone defender reads the delivery, tracks the dangerous runner, and clears. Emphasise scanning both runs, judging the flight early, and committing to the right man. Rotate the roles.
Fork it into your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block.