Atletico Madrid have confirmed the signing of Granada full back Guilherme Siqueira in a move that paves the way for Chelsea target Filipe Luis to leave the La Liga champions.
The Blues are keen to secure a deal for the Brazilian full back as revealed by his agent last week but Atletico's desire to secure the services of a direct replacement has seen negotiations stall.
However, the Spanish champions have acted quickly to confirm a deal that brings 28-year-old Siqueira back to Spain after a season on loan at Portuguese champions Benfica in a deal reportedly worth €10m, allowing the club to cash in on Luis with Chelsea ready to meet his €25m buyout clause.
Deals for Luis and Diego Costa, who has reportedly completed a medical ahead of his £32m move to Stamford Bridge, could be finalised in the very near future in part of a remarkable transfer haul from Chelsea, who are also considered the favourites to sign Cesc Fabregas from Barcelona.
Luis, who played an integral role in Diego Simeone's side that clinched their first title in 18 years last season and reached the final of the Champions League, will help fill the void of Ashley Cole who is currently a free agent after failing to earn a new contract in west London.
The full back's agent Manuel Garcia Quilon recently confirmed Jose Mourinho's side were interested in the Atletico defender, telling reporters: "Chelsea? The interest is there. But Atletico don't want to sell. They want to keep every player they can for next season. Then, we'll see what's happening with different players, but Atletico don't have any intention to sell anyone."
The Atletico Madrid side that so impressively halted Real Madrid and Barcelona's duopoly of the Spanish top flight could be torn apart this summer. With Diego Costa and Luis on the brink of moves to Chelsea, the future of midfielder Koke also remains in doubt with the Blues, Manchester United and Barcelona keen to enlist his services.
The club have also this week confirmed a deal to sign Miguel Angel Moya from Getafe in a move that raises further questions over Thibaut Courtois' future. The Belgian has spent three impressive seasons on loan at the club from Chelsea but Atletico's move to secure cover in goal suggest their hopes of striking another deal for the 22-year-old are slim.
Elsewhere, David Villa has left the club to link up with Major League Soccer's newest addition New York City FC. The 32-year-old Spanish legend will first join A-League Cup Melbourne City on loan later this year before New York's inaugural campaign gets underway in March 2015.