Chelsea midfielder Christian Pulisic has been warned not to relax.
Pulisic could follow Manchester City star Kevin De Bruyne in leaving Chelsea for first-team football according to former USA international Herculez Gomez.
He told ESPN: "This is just life at a big club.
"Just to throw out some names you've got Lukaku, Salah, Kevin de Bruyne, Higuain, they've all made some sort of stop at Chelsea and then you're gone.
"If you can't produce in that half-season or whatever they give you, that's it and it's on to the next. That's life at a big club.
"If I'm Christian Pulisic, I'd never get comfortable, I have to fight for everything."