The former Liverpool star was ineffective in the 3-1 win over Rayo Vallecano and Barca fans were quick to show their disapproval.
Barcelona will need to win tonight with any away goal for Lyon set to be crucial.
And defender Gerard Pique is backing Coutinho, who has scored eight La Liga goals this season, to come good.
"Philippe is having a good season, but obviously his price tag was very big and this means there are bigger expectations about his performances," Pique said.
Ousmane Dembele is set to miss Barcelona's clash with Lyon (Image: GETTY)
Barcelona: Coutinho struggling with environment says Burley
"You have to accept the reaction of the supporters because they are our fans, but inside the dressing room the players give him all the support in the world."
But while Pique was backing the forward, Barca boss Valverde didn’t appear as confident.
"How we handle our team internally is a private matter, between us,” he said.
“There are moments when you need to talk with the player and there are times when you don’t.
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