And the Brazilian has opened up on how difficult his time was with the reigning English champions, confessing his shock at spending the majority of his 12 months in west London sat on the bench.
He suggests that he was promised playing time by manager Jose Mourinho before his arrival, and was expecting to be a regular starter – not a back up to first choice Cesar Azpilicueta.
“I always really missed Atletico,” he told Spanish newspaper AS.
“I was coming to play 50 games or more and to have to share my position [with Azpilicueta] shocked me. It makes you less important but I made up for the games I missed with games for the Brazil team.
“It’s true I wasn’t as important at Chelsea. I never demanded that. What I wanted was to be a champion, because few people get that. I succeeded. But the happiness wasn’t there. It’s a significant difference.
“I talked to [Diego Simeone] a few times. He asked if I wanted to return and I told him I’d love to.”
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What’s more, Filipe Luis also revealed that himself and Diego Costa would try and watch as many Atleti games as they could, and will have delighted Chelsea supporters in saying that Costa is fully adapted to life in the English capital.
“We would get together to watch the games. I remember the Super Cup. Diego and I were focused and we went down to the front desk to watch the game on the laptop,” he said. “We never lost our affection for Atletico. We talked about Atletico more and more, but they (Courtois and Costa) played regularly and are fully adapted to life in London.”