Kobbie Mainoo spotted ranting to Man Utd team-mates as he is forced off injured against Tottenham before sub confusion

KOBBIE MAINOO ranted to Manchester United team-mates Casemiro and Antony moments after going off injured in their 3-0 loss to Tottenham… before the Red Devils then messed up the substitution.

England international Mainoo, 18, suffered a knock moments after Bruno Fernandes’ red card and was swiftly replaced by Mason Mount.

Kobbie Mainoo went off injured in the first half and was replaced by Mason MountReuters

Sky Sports

He ranted to Casemiro and Antony after being substituted[/caption]

Sky Sports

It was unclear what exactly Mainoo was furious about[/caption]

Sky Sports

Manchester United then messed up the substitution and momentarily played with nine men[/caption]

As he trudged off the pitch, he could be seen remonstrating with substitutes Casemiro and Antony.

The Three Lions star appeared to be angry at a particular incident on the pitch, though it is unclear specifically what he was gesturing about.

Man Utd then made matters worse as play resumed before Mount had come on the pitch.

It meant they were temporarily defending with just nine players as Mount waited by the touchline.

After the ball went dead seconds later, the ex-Chelsea man was finally allowed to enter the fray.

The embarrassing mistake occurred at the end of a nightmare first half for Erik ten Hag‘s side.

Brennan Johnson had given Tottenham the lead after less than three minutes into the match after Micky van de Ven sauntered past four Man Utd defenders and crossed for the Welshman to score.

Ange Postecoglou‘s side completely dominated and should have been ahead by more when Fernandes was shown a red card shortly before half-time for a wild challenge on James Maddison.

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Man Utd legend Gary Neville pulled no punches in his scathing view of Erik ten Hag’s side – before they conceded second-half goals from Dejan Kulusevski and Dominic Solanke.

After labelling the Red Devils “helpless” and “hopeless”, Neville added: “I can’t believe what I’m watching, it’s awful.”

And ex-Spurs midfielder Jamie Redknapp said: “Spurs have been excellent.

“But United have been abject. No confidence, no identity. It has been so poor from them.”

Mainoo was clearly upset as he trudged down the tunnelGetty