Tottenham manager Jose Mourinho refused to comment on the performance of the officials after a controversial VAR decision in his side's 3-1 defeat away to Sheffield United.
The hosts took the lead through Sander Berge in the 31st minute before Harry Kane looked like he had equalised for Tottenham shortly afterwards.
However, the effort was ruled out after VAR was consulted, with Lucas Moura deemed to have handled the ball in the build up to the goal.
Lys Mousset and Oli McBurnie went on to extend United's lead before Kane got a late consolation for Tottenham.