Atletico Madrid coach Diego Simeone admits Antoine Griezmann could soon leave.
The French attacker is being linked with Manchester United and Barcelona this season.
Simeone says he'll accept it if Griezmann asks to be allowed to leave: "I love my players a lot and I love to see them grow.
"I am not ungrateful. If a player comes to me and says: 'Coach, I have a once in a lifetime chance to play for a certain team, I want to leave'.
"If he did all he could for me as Griezmann does, I'll say it's no problem. I know that he needs to grow. Of course Griezmann will be able to leave at some point, the same way Costa and Arda Turan were allowed to leave."