Arsenal legend Martin Keown has warned the Gunners against signing 'high risk' David Luiz.
Luiz is set to move to the Emirates in an £8million deal after Arsenal struck a deal with London rivals Chelsea .
The 32-year-old will pen a two-year deal at Arsenal after fearing for his first-team prospects under Frank Lampard.
Following a series of rows this week, Luiz did not train with his Blues teammates on Wednesday as the move across the capital edged closer.
He replaces Laurent Koscielny at the Gunners who left in acrimonious circumstances for Bordeaux after refusing to travel on the club's pre-season tour.
But Keown thinks Luiz's style of play is a huge risk for his former side.
"If I was at Arsenal and had the ear of Unai Emery, I would be advising my manager not to sign David Luiz," he told the Daily Mail. "Walk away from this deal. This is not the defender for you. It’s too high risk.
"Yes, Arsenal want a centre back, but is Luiz the answer to their prayers? I don’t think so.
"The way the 32-year-old plays, he would be exposed in that Arsenal defence. He would not get the same protection that he enjoys at Chelsea, where N’Golo Kante patrols in front of the back line.
"In possession, Luiz is a wonderful passer, but he makes mistakes when playing as part of a back four.
"He has a tendency to lose his marker and is one of those all-or-nothing players — if he doesn’t win the ball in a challenge, then congratulations because you’re in."
