It was an emphatic day at the office for Celtic against St Mirren but it was a match littered with big VAR calls from referee David Dickinson and video official Andrew Dallas.
Mark O'Hara put Saints ahead after Greg Taylor was deemed to have handled the ball inside the box by Dickinson after guidance from Clydesdale House.
Then Charles Dunne was sent off for a foul on Kyogo as the last man but it was pulled back from a penalty to free-kick after a VAR check, although there was little debate on the red card.
Its final intervention was in the second half when Alex Gogic got a hold of Oh's shirt in the box. That was reviewed and turned into a penalty kick, which the South Korean forward converted to put the shine on a 5-1 win over St Mirren after Jota, Alistair Johnston, Liel Abada and Matt O'Riley goals.