Watch: Fans left in disbelief as Casemiro escapes punishment for challenge on Jacob Ramsey

Manchester United midfielder Casemiro was lucky to avoid a booking, or possibly even a red card, in the 21st minute of Sunday's 1-0 win over Aston Villa.

Erik ten Hag's team was able to recover from a disappointing loss to Spurs earlier in the week, with Bruno Fernandes scoring the only goal of the first half.

The win against Unai Emery's side, however, was not an easy one, despite their recent excellent performances.

If the referee, Jarred Gillett, had decided to punish Casemiro for a late challenge on Villa's Jacob Ramsey in the opening stages, the game could have been far more challenging for the home side.

The footage below shows how Casemiro escaped any disciplinary action despite his reckless challenge on Ramsey, which could have potentially impacted the outcome of the game.

Immediately after the challenge, the Brazilian midfielder, who has already missed several games this season due to receiving two red cards against Crystal Palace and Southampton, protested his innocence.

And to the surprise of some supporters, he managed to get away with it. What do you think?

Here's how fans on social media reacted to the incident.

One said: "I’m still struggling to see how Casemiro didn’t get booked for this?" while another commented: "It was a disgusting malicious tackle where his intent was to stop play. As blatant a yellow card as you'll ever see."

A third wrote: "Someone somewhere explain how this isn’t a booking (a red)," and a fourth said: "This was a blatant yellow. I was surprised he wasn’t booked. He hasn’t learnt anything with this lunging into tackles it seems."

Casemiro has certainly been one of United's standout performers since making his much-talked about £70 million summer move from Real Madrid.

In total, he has played 43 times in all competitions under Erik ten Hag and according to WhoScored, the 31-year-old has made a tackle every 23.8 minutes in England's top flight this season – the second highest in the league.