Manchester City striker Sergio Aguero won't rule out a return to Spain.
The Argentine's contract at the Etihad Stadium runs until June next year having signed a one-year extension in 2018.
"It's difficult; I'm not thinking about what am I going to do. I know that every day my contract is closer to expiring. Probably there will be some offers but we'll see," former Atletico Madrid striker Aguero told El Chiringuito.
"For now I just want to try to win the Champions League with City. That would be an incredible achievement for me and the club.
"But I haven't really thought about what I will do after 2021. Also the current landscape makes things more difficult. If next season starts later, it will probably end later - maybe in August, something like that.
"And a lot of players have their contracts expiring in June - we'll have to see how everything is sorted out. If contracts are prolonged I don't know, we'll see how it goes.
"I don't rule out going back to Spain, or going to any country. I don't know what I will do. Today I feel good and comfortable in Manchester. I want to do everything in the club in the best terms, then we'll see."