Chelsea headed into their clash with Tottenham unbeaten in the Premier League.However, after losing 3-1 at Wembley, Maurizio Sarri’s side dropped to fourth in the table, and are now just one point ahead of Arsenal in fifth.It’s now just three wins in their previous eight league games and, suddenly, there are question marks surrounding this new-look Chelsea side.On Monday Night Football, Jamie Carragher suggested that N’Golo Kante is ‘very average’ playing on the right of a midfield-three under Sarri with Jorginho operating in the defensive midfield role.“The one thing about Kante is he is a very average player in this [advanced] position he’s playing now,” Carragher said.“I see a normal midfielder player. When he plays deeper, I see a world-class midfield player.”But the Jorginho/Kante situation may not be Chelsea’s biggest issue.Instead, it could be defender David Luiz.A stat emerged this week suggesting the Brazilian has been at fault for seven of the 11 league goals Chelsea have conceded this season - equating 63%.And that stat went viral after Chelsea’s 3-1 defeat to Spurs, in which Luiz didn't cover himself in glory.So viral, in fact, that it reached Luiz himself.The ODDSbible posted the staggering stat with the caption: “Time for Sarri to get in a new CB?”And Luiz’s reply can be seen in the comments as he wrote: “And the 28 points we had won?? Leaders always take the responsibility, no problem!!!”

It seems he’s not too happy with the stat that is doing the rounds.

Chelsea’s recent form has seen them drop seven points behind Manchester City at the top of the table, while they’re five behind Liverpool.