In the early hours of this morning, United were eliminated by Championship-winning Middlesbrough on a home penalty in the fourth round of the FA Cup, but Mibel's equaliser in regular time has sparked controversy.
In the 64th minute of the match, Walmer crossed and assisted Crookes' goal, and Walmer had handballed before assisting, but the referee did not show any indication.
According to the new IFAB regulations, if a teammate accidentally handballs before scoring a goal, it will no longer be considered a handball foul.