"It will be very special for me and I'm sure that I'm going to enjoy the experience," said the 24 year old.
"I hope to get a good reception from the fans because Atletico gave me a lot, although I also gave a lot to Atletico.
"I understand that when the game starts they will see me as a rival, but I'll never forget the years I spent there. For me it will be an amazing feeling to run out onto the Vicente Calderon pitch again and meet up with old team-mates and friends."