Ange Postecoglou has taken a thinly-veiled swipe at VAR after his side conceded a penalty and had one overturned during their Premiership win over St Mirren.
The Celtic manager bemoaned the officials after referee David Dickinson awarded a spot-kick to the home side after a VAR check showed Greg Taylor handled the ball in the area. St Mirren captain Mark O'Hara stepped forward and slotted the penalty kick past Joe Hart in the Celtic goal to make it 1-0 in the sixth minute.
The Parkhead side went into the break a goal down but a man up after Charles Dunne was sent off for Stephen Robinson's men on the 38th minute. Dickinson awarded Celtic a penalty, however another check by VAR judged that the contact was outside the box and instead they were given a free-kick on the edge of the box. The subsequent free-kick led to nothing and the champions went into the half-time break 1-0 down.