Chelsea manager Maurizio Sarri believes “English referees are not able to use VAR” while Tottenham boss Mauricio Pochettino said he was “unhappy to win like this” after the system awarded Harry Kane the penalty that won the Carabao Cup semi-final first leg.

The only goal of the Wembley game came from the spot after referee Michael Oliver consulted the video assistant referee to check if Kane was onside before he was fouled by goalkeeper Kepa Arrizabalaga.

The VAR camera suggested Kane was onside, but Chelsea showed a screenshot of their own system after the game that suggested he was offside.

The Premier League is set to introduce the system from next season.

“We have six months to improve the system,” Pochettino said. “There is a lot of work to do.”