Frank Lampard has admitted that he 'worries about what is around the corner' amid Chelsea's alarming dip in form over the festive period.
The Blues have lost four of their last six and conceded three first-half goals as were they brushed aside by Manchester City last weekend.
As the pressure builds on Lampard, he called on his confidence-hit players to be 'even more on guard' as they prepare to host League Two Morecambe in the third-round of the FA Cup on Sunday.
He said: 'No matter form, team, status, the FA Cup has a magic that's been there forever which means underdogs will turn up and make it difficult.