Chelsea's 3-0 defeat in the Nou Camp means that the FA Cup is now their only chance of securing silverware this season.

That makes Sunday's trip to Leicester in the quarter-finals their biggest game of the season so far and Claude Puel's side are sure to give Antonio Conte's side a stern examination.

They are safe in the Premier League which means they can really focus all their attentions on cup progression, which is dangerous for the Blues, who may be tired after their midweek match.

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There has been an undoubted drop off in performance levels at Stamford Bridge this season but despite that, Antonio Conte has stayed fiercely loyal to the three-man defence that secured the title at a canter last season.

The Blues were not especially impressive in the second part of last season but had built an unassailable lead by that point and their slump has continued this season, albeit in more dramatic style.

The shape in front of the three defenders has altered throughout this season; from 3-4-2-1 to 3-6-1 and 3-5-2 but maybe it is time to move back to the four-man defence Chelsea used up until last season.

That's what we're asking you; should Conte take the plunge and go back to four at the back? Let us know by voting in the poll below...