Kolkata co-owner Shah Rukh Khan looks on during an T20 2018 cricket match against Mumbai at Eden Garden in Kolkata on Wednesday. Pic/PTI

Superstar Shah Rukh Khan has apologised for the "lack of spirit" after his team Kolkata lost the match to Mumbai at the ongoing T20 2018. Shah Rukh, who co-owns the team with actress Juhi Chawla and her spouse Jay Mehta, on Wednesday night took to Twitter to apologise to Kolkata fans.