Questions have been raised about Manchester City's winning goal against Brighton & Hove Albion.
Phil Foden 's fine 44th-minute strike gave City a 1-0 victory over the Seagulls at the Etihad Stadium on Wednesday evening.
Raheem Sterling missed a late penalty but it did not prove costly in the end as Pep Guardiola's men saw the game out.
However, there was some debate post-match as to whether City defender Ruben Dias had fouled Brighton's Percy Tau in the build-up to Foden's decisive goal.
Former Premier League referee Peter Walton believes it was a foul - but said the VAR (video assistant referee) was correct not to advise referee Darren England to rule the goal out, as he did not see it as a clear and obvious error.
"Part of the VAR's remit is to make sure there's nothing happening prior to the goal in what they call the attacking phase of play," Walton told BT Sport.
"As we can see with Dias sliding in with Tau, yes, there is contact with Tau and does he get the ball? It's a very subjective play.
"The VAR will be conscious of the fact that the referee, Darren England, doesn't miss the incident. He's right on top of it and so he's looking for a clear and obvious error from the referee, and he deems that not to be a clear and obvious error, unlike we saw in the Burnley v Manchester United game, with (Luke) Shaw, which was a clear foul and was brought back accordingly.
"This one was very subjective and allowed to play on - and I think quite correct from the VAR not to intervene in this instance."
Walton added: "There will be some people out there who would argue it was a foul and some people would argue it wasn't a foul. In my opinion, I don't think he actually gets the ball and I think there is a case there for a foul.
"However, is it clear and obvious? Do we want the VAR to get involved in such a subjective point there? I don't think we do and I think the VAR was quite right in not bringing that to Darren England's attention."
Pundit Joleon Lescott was also asked about the incident.
"Potentially it could have been (a foul) - but it wasn't given and you didn't see any player from either team highlight that it was a foul," said the former City defender.
"I didn't see it in the game but if it was given before the goal was scored, I wouldn't have been arguing either way."
