5 big Celtic vs Rangers referee decisions as Borna Barisic 'dive' goes unpunished by Don Robertson

It's arguably the fiercest battle in football and this Rangers vs Celtic instalment was no different as both sides went at it blood and thunder in search of victory.

John Lundstram's full-blooded tackle on Kyogo set the tone of battle in the chaotic cauldron of Scottish Cup semi-final battle. Referee Don Robertson had all of a few minutes to get into the middle man frame of mind after Willie Collum pulled up injured, but it was Rangers who weren't switched on as they went to sleep and allowed Jota free header to hand the Premiership champions a 1-0 half-time lead.

That was enough to see them into the final against Inverness and Robertson managed to make his way through proceedings without much fuss for him or VAR, outside one or two small moments through the 90+ minutes. Record Sport runs the rule over some of the big tackles and referee shout.

So this was full of force from the Rangers midfielder but not enough for Robertson to warrant it as anything more. He slid in on the wet Hampden surface and handed a free-kick to his rivals. It's been a spot of contentiou debate for fans on social media though, with many pointing it out as similar to the foul Graeme Shinnie made for Aberdeen in a recent Premiership fixture. And James Jeggo had similar with Hibs, but his was overturned.

So consistency appeared to be the main grip of punters. The description of serious foul play in the IFAB rule book states: "A tackle or challenge that endangers the safety of an opponent or uses excessive force or brutality must be sanctioned as serious foul play. Any player who lunges at an opponent in challenging for the ball from the front, from the side or from behind using one or both legs, with excessive force or endangers the safety of an