The Chelsea ace, who won the PFA Young Player of the Year award last season, is yet to scale the heights expected of him in Brazil this summer.
"Eden wants to do more, he can bring us more," he told a press conference.
"Everyone knows that. So now I'm just waiting to see it and I'm not trying to put any pressure on him. I would like him to be a leader on the pitch even if he is just 23."
The clash with Jurgen Klinsmann's side kicks off at 9pm.