Willie Collum made THREE big mistakes in Aberdeen vs Celtic last night, according to ex-SPFL referee Charlie Richmond.
Celtic's winner
The Portuguese winger stuck just moments after Ferguson's equaliser.
Tony Ralston's header played him in, but there was debate over whether an offside Liel Abada was interfering with play by blocking off David Bates.
"When the header from Anthony Ralston goes forward, Abada is in an offside position.
"It’s not an offence to be offside, but he starts to walk back and into the path of David Bates.
"He’s interfered with the Aberdeen defender. It’s not like Abada has stood still, he’s initiated the contact and interfered with the opponent.
"It’s not about whether Bates would have won the ball, but he would have potentially influenced Jota’s finish.
"It’s in such close proximity, too, so Bates could have got across to block the shot.
"It should have been given as offside."