WATCH: Kepa Arrizabalaga defies furious Chelsea boss Maurizio Sarri in Carabao Cup final

Sarri stormed towards tunnel before returning for shootout defeat to Man City

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There were incredible scenes at Wembley as Chelsea 'keeper Kepa Arrizabalaga refused to be substituted by Maurizio Sarri in extra time, causing a huge row with his manager!

Maurizio Sarri appeared to be overruled by his own goalkeeper Kepa Arrizabalaga during a remarkable and bizarre finish to Chelsea's Carabao Cup final defeat to Manchester City.

With the game goalless and deep into extra-time, Kepa seemed to be struggling with cramp and Sarri readied substitute 'keeper Willy Caballero to come on for the final moments and the approaching penalty shootout.

However, when Chelsea went to make the substitution, Kepa refused to come off the pitch and insisted he was fit to continue, despite Sarri trying to complete the change regardless and imploring his player to leave the field from the touchline.

Maurizio Sarri Willy Caballero
Image: Maurizio Sarri tries to substitute Willy Caballero onto the pitch

The situation escalated as referee Jon Moss was forced to ask Kepa to leave the field himself before going over to Sarri to ask for the manager to make a decision on the substitution.

Willy Caballero waits for Kepa Arrizabalaga to leave the pitch after his number is raised by the fourth official
Image: Caballero waits for Kepa to leave the pitch after his number is raised by the fourth official

The Chelsea manager eventually allowed Kepa to stay on before storming back to his dugout, slamming a water bottle into the floor and then marching off towards the tunnel.

Kepa Arrizabalaga throws his arms out in frustration and refuses to be substituted during the Carabao Cup Final
Image: Kepa Arrizabalaga throws his arms out in frustration and refuses to be substituted during the Carabao Cup Final

Sarri then turned on his heels and returned to his technical area, but was clearly incensed by having his authority undermined in such a public way.

Willy Caballero reacts as Kepa Arrizabalaga refuses to be substituted in the second half of extra-time
Image: Caballero reacts as Kepa refuses to be substituted in the second half of extra-time

After the final whistle, Sarri appeared to clash with Kepa and then Chelsea captain Cesar Azpilicueta before trying to offer some words of motivation to his team before the shootout.

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In the shootout, Kepa allowed Sergio Aguero's poor penalty to pass underneath him before saving from Leroy Sane but could not prevent Chelsea suffering defeat.

Sarri throws down a bottle of water in frustration as Kepa refuses to be subbed
Image: Sarri throws down a bottle of water in frustration as Kepa refuses to be subbed

"It's certainly not the end of it. It's a cloud over a really good Chelsea performance," said former captain John Terry.

"I think once the number goes up you have to come off. As a player you have to show that respect and come off. I get it that he doesn't want to, he's in the final, he's played well, he's doing well, if he's told the physio and the medical department he's ok…

Sarri threatens to walk out following Kepa's refusal to be substituted
Image: Sarri threatens to walk out following Kepa's refusal to be substituted

"I can get his frustration but you deal with that after."

Jamie Redknapp was equally stunned by the incident and also backed Sarri. "I thought I'd seen it all in football," said the Sky Sports pundit. "I feel sorry for the manager. It's such a difficult situation for him."

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