French football expert Julien Laurens is shocked by Chelsea's swoop for PSG defender David Luiz.

Le Parisian journalist Laurens. speaking to BBC Radio 5 Live, fears what lies ahead.

He said: “"He's been a liability for PSG more than anything else.

“Everybody remembers the game he had against Barcelona and Luis Suarez, who nutmegged him twice, in the Champions League quarter-final and humiliated him at the Parc des Princes.

“He hasn't improved at all since leaving Chelsea. He's probably coming back a worse player than when he left.

“They (PSG) almost got their money back, two years after he left, for a player who's two years older.

“I've watched him pretty much every weekend since he joined PSG, I can hardly remember four games where he was actually good, or very good maybe. He had some shockers.

“PSG couldn't believe their luck and I think first of all they tried to keep him because they had no other options and then they thought 'the money's too good, we can't turn that down, it's impossible'."