If Collins had performed the kind of standard blocking action we see from attackers on most corners he would have gotten away with it, but it's bound to raise questions of when the VAR should be getting involved in these kinds of situations.
VAR review: While Gibbs-White had at least one arm on the back of Nélson Semedo as the corner was delivered, it doesn't seem to be enough to lead to a VAR intervention. There's been much heavier contact made by an attacker on a defender and the decision has remained on-field.
West Ham 0-2 Fulham
Possible red card: Pereira challenge on Paquetá
What happened: Andreas Pereira slid in to challenge Lucas Paquetá in the 61st minute and caught the West Ham United player with a raised foot. Referee Stuart Attwell chose to show a yellow card to the Fulham midfielder.
VAR decision: No red card.
VAR review: Pereira is fortunate because the height of the challenge meant Attwell could have shown a red card.
However, the lack of force in the contact on Paquetá means a yellow card is always likely to be seen as an acceptable on-field decision by the VAR, Darren England -- in the hub for the first time since his error to not allow Luis Díaz's goal for Liverpool at Tottenham Hotspur over six months ago.
Possible penalty: Paquetá challenge on Lukic
What happened: Paquetá was booked in the fifth minute of added time for a rash and late challenge on Sasa Lukic. The VAR checked for a possible red card.
VAR decision: No red card.
VAR review: There are some similarities in the dismissal of Aston Villa's John McGinn against Tottenham, though McGinn ran in from some distance to take out Destiny Udogie and it's the force that creates which makes the difference.
Paquetá had no interest in the ball and kicked an opponent to the floor; a yellow card is supportable but another referee might have produced a red.
Newcastle 4-0 Tottenham
Possible offside: Guimarães on Schär goal
What happened: Fabian Schär wrapped up the victory for Newcastle in the 87th minute when he headed home a corner from Anthony Gordon. But was there a teammate offside in front of the goalkeeper? The VAR, Stuart Attwell, checked the goal. (watch here)
VAR decision: Goal stands.
VAR review: Wolves' disallowed goal against West Ham United last week caused a lot of controversy, though the Independent Panel unanimously supported the decision.
Schär's goal provides a great example of how an attacking player's proximity to a goalkeeper is crucial.
Bruno Guimarães was in an offside position in the line of vision of Tottenham Hotspur's Guglielmo Vicario -- yet it's the perceived impact which determines if there's an offence.
The key difference is the distance between Guimarães and the keeper -- the greater it is the less chance there is that the opponent can be affected.
Wolves' Tawanda Chirewa virtually stood on top of Lukasz Fabianski, making that an easy offside decision. There's far more subjectivity involved in Guimarães' position.
Yet it's easy to find similar situations with opposite outcomes -- which is always going to be a frustration for supporters.
Liverpool had a Harvey Elliott goal disallowed at Burnley in December due to Mohamed Salah offside in front of goalkeeper James Trafford. Salah's position isn't much different to Guimarães, yet it was a low shot which mean a greater chance of impact.
But in September, a Dominik Szoboszlai goal against Aston Villa was allowed to stand even though Salah was again in the view of keeper Emiliano Martínez. On that occasion, the reasoning was that the shot came from such a distance that there was enough time to react.
Unless you give offside against any player in a goalkeeper's line of vision, there's always going to be perceived inconsistencies in assessing impact.
Arsenal 0-2 Aston Villa
Possible penalty: Challenge by Carlos on Jesus
What happened: Gabriel Jesus collected the ball in the 48th minute and went to ground under a challenge from Diego Carlos. The striker looked around to David Coote asking for a penalty, but the referee played on.
VAR decision: No penalty.
VAR review: Both Jesus and Carlos arrive at the ball at around the same time, with no obvious challenge. In fact, it was the left foot of Jesus which appeared to go into the Aston Villa defender.
Man City 5-1 Luton
Possible penalty overturn: Onyedinma challenge on Doku
What happened: Jérémy Doku ran into the penalty area in the 75th minute and went to ground from a tackle by Fred Onyedinma. Referee John Brooks immediately pointed to the spot.
VAR decision: Penalty stands, scored by Erling Haaland.
VAR review: One of the clearest penalties you're likely to see, with Onyedinma placing his right foot across the path of Doku as he tried to run past him.
Some parts of this article include information provided by the Premier League and PGMOL.