Filipe Luis
Filipe LuisReuters

The deal that will take Atletico Madrid defender Filipe Luis to Chelsea is all but done, according to reports.

The 28-year-old, 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 after failing to earn a new contract in west London.

Last month, the full back's agent Manuel Garcia Quilon confirmed Jose Mourinho's side were interested in the Atletico defender, telling reporters: "Chelsea? The interest is there. But Atletico do not want to sell.

"They want to keep every player they can for next season. Then, we will see what is happening with different players, but Atletico do not have any intention to sell anyone."

And, after months of negotiations with La Liga giants, The Sun confirms that the Blues have signed Luis for £20m to replace Cole at Stamford Bridge – who has completed his free transfer move to Roma.

With Cole's departure, Mourinho will be left with Cesar Azpilicueta as the only option in the left-back position – so a move for Luis will help the Blues further strengthen their defence.

The Portuguese also has Liverpool target Ryan Bertrand as the other left-back in the squad, but he deployed Azpilicueta in that position last season.

Atletico recently signed the Granada full-back Guilherme Siqueira on a four-year deal thought to be worth in the region of €10m (£8.12m) – allowing the club to cash in on Luis, with Chelsea ready to meet his £20m buy-out clause.

The defender will become Mourinho's fourth signing of the summer, after the arrivals of Diego Costa, Cesc Fabregas and Croatian youngster Mario Pasalic.