Tottenham boss Mauricio Pochettino is ready to throw Juan Foyth into tonight's Carabao Cup clash with West Ham.
Foyth has so far been eased into English football.
Pochettino, who was a defender in his playing days, said: "Foyth is young, but he needs to show why is here. And maybe then he has the possibility to play. You will only know if he is ready to play if he plays.
"Maybe in the future, if some players are suspended or maybe we have some injuries, then we'll play with him.
"I remember playing when I was 17 or 18 against a massive striker — and I'm smaller than Juan.
"I'd say, 'Come on. You need to show.'
"Juan's at Tottenham now. He needs to fight and prove that he can compete in these type of games."