Luton Town players were furious during their FA Cup clash against Chelsea after Tammy Abraham's first goal - claiming it should not have counted because there were two balls on the pitch.
Abraham swept home a fine strike from inside the penalty area after 11 minutes after picking up a deflected cross from Timo Werner down the right hand side.
Just seconds before the goal, Hakim Ziyech took a quick throw-in for Chelsea while there was a separate ball on the pitch which distracted some of the Luton players.
Here's how Chelsea got their opener against Luton.