Chelsea are willing to pay £20 million to try and land the 22-year-old centre half from FC Porto.
Mangala would be a superb addition to the Chelsea squad because he has the core attributes to be a great defender in the Premier League; speed, height, strength, aggression and the ability to read the game.
The main issue that Jose Mourinho seems to have with David Luiz’s game is how the Brazilian stays too high up the pitch when he plays a central defensive role, seemingly willing to break from his position frequently.
Mangala’s presence in the Chelsea squad would mean Mourinho has another option to use over David Luiz, alongside John Terry and Gary Cahill.
The Brazilian would have to change his defensive game, playing considerably more responsibly, becoming a safer defender if he wants to retain his place in the first team.
However, Mangala’s arrival can be seen as a positive because if his presence in the squad forces David Luiz to become a safer and more complete defender, that can hardly be viewed as something negative.
The other major thing that it means to David Luiz could relate to his position.
Mourinho has already urged the Brazilian to change the way he plays but a back heel last night, as the last defender, in the League Cup match at Swindon suggests he’s not going to change his flamboyant and abrasive nature.
Therefore, Mourinho may do what Rafael Benitez did last season, simply giving in and letting David Luiz move into a defensive and holding midfield role.
That means the Brazilian would not have to worry so much about the responsibilities of being a centre back with Mangala, Terry and Cahill all able to play on either side of central defence.
Some of his best performances for the Blues have come in that defensive midfield role and his experience at centre back means he can always go back to that position, if Chelsea pick up a high number of injuries to defenders.
Pushing David Luiz forward may also make Chelsea’s backline harder to penetrate because he will drop into the defence at times when the Blues are under pressure, which would give the side an immensely difficult central defence to break through.
Mangala means only good things for David Luiz. Don’t believe any suggestions that he could be forced out as a result of Mangala’s arrival if the deal eventually happens because Mangala’s presence can only make the Brazilian a better player.
image: © Ben Sutherland