Poor: Oriol Romeu
This is perhaps slightly harsh because Oriol Romeu was practically mobbed by the moving parts of Chelsea's attack on plenty of occasions and came up short against them. Nonetheless, three of the four goals scored by the blues came from areas that he should have covered and allowed for shots and passes to be executed around him.
At his best, Romeu is an absolute unit in front of the defence and keeps out most long-distance shots or intervenes at the right time to disrupt quick exchanges. Against Chelsea, he did alright to stop some quick attacks but had he been in a better position, the Saints may have prevented at least two of the four goals and given themselves much more of a chance.
It's not the worst game he could've had, but being charged with the protection of this backline and leaving them exposed for the best part of 90 minutes is inexcusable.