After delivering the knockout blow to LA Galaxy, Mateusz Klich copied an iconic boxing celebration of his coach, Wayne Rooney, after helping DC United to a 3-0 MLS victory on Saturday night.
Former Leeds midfielder Klich converted from close range for his team's third goal after an awful mistake by Galaxy goalkeeper Jonathan Bond, who had spilled a cross out into his own six-yard box.
As the midfielder ran over to the corner to celebrate, he jokingly started shadow boxing before falling slowly backwards as if he had been knocked out - directly mimicking Rooney's celebration after a goal for Manchester United in the 2014-15 season.