The Italian moved to the Spanish champions from Torino this summer and has said that he cannot wait "to contribute to a special group with a great coach".
"I wanted to come to Atletico. My desire was very strong. My dream was always to play for a club like this," he told AS.
"I get to contribute to a special group with a great coach. I'll face this adventure with enthusiasm and strength. I like to score and create. For me the important thing is to be myself because that's the way I'll get goals and assists.
"When you're signed by a big club the pressure is strong. Atletico is a top club and it's normal pressure. I'm not going to be affected by it and I'll just give my all. I hope for a lot of pressure as it doesn't scare me, it motivates me."
Cerci, 27, scored 13 times for Torino last season.