Tomas Soucek swiftly intervened after West Ham celebrations had caused an advertising board to fall on a Crystal Palace ball boy.
The chaos occurred after Jarrod Bowen sent the West Ham away fans into bedlam following his second goal, which ultimately sealed a 2-0 win for the Hammers at Selhurst Park.
Soucek had put Julen Lopeteguiās side a goal ahead only five minutes before, after neat work from substitute Aaron Wan-Bissaka who was making his debut for the club.
Bowen then finished off a brilliant counter-attack with a thumping shot, after Soucek won the ball in his own half and sent a stunning pass to put the newly-appointed club captain through on goal.
Players and supporters celebrated wildly, but there was almost a serious accident after the rush of West Ham fans caused one of the advertising hoardings to break and fall onto the ball boy sat …