The England global has not been included in any of Sarri's three match day squads in the league thus far and there are doubts about whether he will retain the club captaincy going forward.
Antonio Rudiger said it is only a matter of time before Chelsea produce the performances to match their results after a hard-fought 2-1 win over Newcastle maintained their flawless start to the season.
The Belgium global confessed in July that he would consider swapping the Blues for Madrid after spending six largely successful years in West London.
'I don't know if he is able to play for 90 minutes, but I think it's time to start for him from the beginning. The most important thing is what he shows on the field. He also got a call up in the Spanish National side in 2018 for his good performance at Chelsea.
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Despite dominating Sunday's clash with Newcastle, Chelsea looked set to drop points when Joselu headed in an equaliser on 83 minutes.
"That's a good sign", Rudiger said of Chelsea's late victor. He said, "Yes, but I told him that he needs to be patient now". We want to be at the top at the end of the season.
Maurizio Sarri is considered to be implementing a winning blueprint in west London, with the Italian seeking to embrace a more expansive footballing philosophy than his predecessor Antonio Conte . 'I don't want to speak about the past. You just try to play better. Alonso is more like a midfielder - very elegant on the ball, clever with how he uses space and angles - but he does not have the pace to unsettle a defence.
'To make those players defend is not their strength, especially Eden. "Those two players can attack and also defend as well".