The Blues emerged 1-0 winners, keeping a clean sheet with the Brazilian defender watching on in plain clothes, perhaps showing that there was merit in Conte's decision - as the Londoners have found shutouts hard to come by this season.
Walker thinks the emphasis is now on Luiz to respond and raise his game if he wants to convince Conte that he deserves to be starting ahead of Christensen in the Blues backline.
"He's not been playing well", Wilkins told Premier League Daily.More news: How captain Virat Kohli prepped for 29th happy birthday with brilliant fifty
"It's normal. This can happen to every one of my players, if I see that they are not in good form". Another young player, a really good player for the present and the future.
"I have to make important decisions". I was very happy for this.
He said after the United win: "Maybe in the future I can decide a different way or continue in this way".
The 30-year-old Brazil worldwide fears for his future at the club and believes his relationship with Costa could be used against him as Luiz tried to act as peacemaker between Conte and the Spain global over the summer.More news: Rand Paul Attacker Just Released a Statement Addressing His Motive in Assault
"Chelsea have been in touch a few times and sometimes Paulo Ferreira comes and talks to me and show me some video clips of what I'm doing wrong and what I'm doing right and asks me how it's going on and off the pitch. But I do the best things for my team".
'I don't know, I think he handled the situation like any other manager would after a disappointing match'. "The club like to play with the young player". I have to make the best decision for the team and I try to do this.
A Facebook post David Luiz produced four years back has resurfaced following recent events.
Following Chelsea's dismal showing in the 3-0 defeat at Roma, Luiz didn't train with the rest of the first-team squad - with speculation mounting that his absence was down to him questioning Conte's tactics for the game at the Stadio Olimpico.More news: Jack Wilshere: 'Arsenal must improve for Manchester City showdown'
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