Crespo is currently on loan at Inter Milan.
Liverpool, Manchester United, Chelsea, Arsenal, Real Madrid, Barcelona and Bayern Munich are all interested in signing the £25million rated striker.
Crespo told the Mirror: “Carlos has shown he can adapt. He has all the qualities to become a champion. The team which buys him instantly has the conditions to win their championship.
“Not only can he score goals, he can also fight for what he believes in.”