Defensive solidity and depth have always been key components for any Jose Mourinho side and his Chelsea team are no different.
With the imminent arrival of Filipe Luis at Stamford Bridge from Atletico Madrid the Blues boss is creating a versatile and dynamic back line at Chelsea.
The transfer of the Brazilian left-back was confirmed on Wednesday on the Chelsea website:
Chelsea Football Club can confirm an agreement has been reached with Atletico Madrid for the transfer of Filipe Luis.
The move is subject to the 28-year-old left-back agreeing personal terms.
According to the Guardian, the west London outfit are reportedly set to spend in the region of £20 million for Luis' services.
While this is quite a lot of money for a defender—who will be 29 by the start of the Premier League season—he is undoubtedly one of the best in the business, per football writer Rik Sharma:
He will be vying for a first team spot at left-back with Cesar Azpilicueta after the departure of long-term Chelsea full-back Ashley Cole.
However, Azpilicueta is actually a natural right-back while Chelsea's main man in that position—Branislav Ivanovic—was originally a centre-back.
What is abundantly clear with the arrival of Luis is that Mourinho has a whole host of options available to him across the back four, and with the likes of John Terry getting on in age, he will have the liberty of resting key players next season as he juggles competitions.
Luis is a combative defender who has a terrific work rate and makes an extraordinary number of tackles from his position, per Opta:
He is also a threat going forward and made 32 starts in La Liga last season as Atletico topped the table conceding fewer goals than any other team in the division, per WhoScored.com.
Luis' arrival makes Chelsea's arguably the best defensive line-up in the Premier League and adds to an already terrific squad, which has also seen the additions of Cesc Fabregas and Diego Costa in the summer window.
Furthermore, goalkeeper Thibaut Courtois has returned from a three-year long loan spell at Atletico and the 22-year-old looks set to claim the No. 1 jersey next season.
His relationship with Luis, forged in Madrid, should add a further level of quality to the Blues defence and help the pair bed in at the club.
Mourinho's style is heavily reliant on having a well organised defence who can restrict the movement of even the best attacks.
In Terry, Azpilicueta, Ivanovic, Gary Cahill and Luis he now has a core of incredibly experienced, reliable defenders who can keep it tight at the back, as well as begin attacks moving forward.
With Azpilicueta potentially playing on the right next season and Luis on the left, the pair can provide Chelsea's attacking players with the confidence and impetus to move forward without fear of being caught out behind.
With the arrival of Luis, Mourinho has completed a core of phenomenal defensive talent which should stand Chelsea in good stead to challenge domestically and in Europe next season.