Deco wants to bring the Champions League trophy to Chelsea.
Deco has already won the Champions League twice - once with Porto and again with Barcelona - and with Chelsea now sitting on top of Group A, he is gunning to make it a hat-trick and become only the second player to win with a third different club.
"I think about it because I also know that the Champions League is the most important trophy that Chelsea have never won," said Deco.
"It would be important for the club to win it and I also have the opportunity to win the competition again. This is a great challenge for me.
"To win it with Porto was not a surprise for me because we had a great team.
"One year before we won the UEFA Cup and we had some very good players but you look at Real Madrid, Barcelona, Milan, Juventus and the English teams and it is difficult to think Porto can win it."