David Luiz
David Luiz is set to become the world's most expensive defenderReuters

Big-spenders Paris Saint-Germain are reportedly close to completing a record-breaking £50m swoop for Chelsea defender David Luiz.

The Brazilian, who has been linked with a move away from Stamford Bridge this summer, is a target for several big clubs, including Barcelona and Bayern Munich.

However, according to the Daily Mail, French giants PSG have finally won the race, by offering a whooping £50m for the 27-year-old. The report added that Luiz, who is set to become the most expensive defender in transfer history, will fly to Paris for a medical, before he leaves to Brazil for the World Cup pre-tournament training.

Luiz, who arrived at Chelsea from Benfica for a fee of £23.5m plus Nemanja Matic in January 2011, will also be happy to make a move away from Stamford Bridge as he has not been playing in his natural centre-back position of late.

The move will benefit Chelsea as well as they look to bring in new talents this summer, while adhering to the UEFA Financial Fair Play (FFP) rule.

Meanwhile, Chelsea striker Demba has confirmed that he will continue at Stamford Bridge, despite the Senegal international being linked with a move away from the Blues throughout last season.

The 28-year-old, who joined from Newcastle United for £7m in January 2013, was keen to leave Chelsea as he felt that he was not getting enough first-team football.

However, Ba claims he changed his mind after Chelsea boss Jose Mourinho persuaded him to stay on for another season.

"Jose Mourinho has asked me to stay at Chelsea next season. He assured me that my situation would change. I see this as my reward from God. I weighed up the pros and cons and will stay put to see what happens," the Daily Star quoted Ba as saying.

I don't know whether my situation will improve, but with the coach's offer anything can happen. I want to play a lot of matches and I think that will be the case for me," the player added.

Ba, who scored two crucial goals against PSG and Liverpool in the Champions League and Premier League respectively, also disclosed that he was approached by Arsenal last season.

"I was approached by Arsenal last August. But Mourinho refused to let me join them, as he said he didn't want to help a rival team to get stronger," he added.