Premier League leaders Chelsea suffered their most convincing defeat of the season against Manchester United at Old Trafford on Sunday and former Tottenham player Jermaine Jenas believes their failure to adapt to Jose Mourinho's tactics was the root cause.
Goals from Marcus Rashford and Ander Herrera capped a flawless performance from the Red Devils in what has been labelled a tactical masterclass.
And Jenas thinks Mourinho's gameplan, which included playing two forwards and shutting down Eden Hazard, was the key.
'I was surprised by their (Chelsea's) lack of intensity, their lack of ability to deal with the pressure that Manchester United and Jose Mourinho with his tactics put them under,' he said on Match of the Day 2 on Sunday night.