The 23-year-old has joined the Blues for the remainder of the season, after extending his deal at Atletico by to 2027.
Arsenal and Manchester United had been among the many different golf equipment thinking about Felix, however he has opted to make the transfer to Stamford Bridge.
“Chelsea is one of the great teams in the world and I hope to help the team reach their objectives, so I am very, very happy to be here and very excited to play at Stamford Bridge,” Felix instructed the membership’s official web site.
The Blues pays Atletico a £9m mortgage charge and canopy Felix’s wages in full whereas he’s in west London.
Graham Potter will hope his arrival can encourage Chelsea again to kind and produce some life to a ahead line that has appeared badly in need of confidence in current weeks.
Chelsea sit tenth within the Premier League, with simply 20 targets scored of their opening 17 matches of the season, and they’re as near the relegation zone as they’re the highest 4.
It stays to be seen whether or not Felix will accessible to make his debut in opposition to Fulham on Thursday night time, with the deadline for registering him noon on Wednesday.