Liverpool legend Jamie Carragher can understand David Luiz leaving Arsenal when his contract expires at the end of this season.

It has emerged Luiz only signed an initial 12-month deal with the Gunners, according to Sky Sports, and could now be heading for the exit.

Carragher said, "We know he can lack concentration and make poor decisions and that's cost certain teams. That's why he's moved on in his career.

"I know Arsenal are really excited about the prospect of Saliba coming in who will be joining next season. He's only 19, so I still think they need a little bit more experience in that position.

"To be honest, it's no surprise they won't be renewing David Luiz's contract."

When asked about the centre-back's career, Carragher added: "It's been entertaining although maybe that's something you don't want to be described about as a defender really.

"He's not going to change how he plays - no manager's going to change David Luiz.

"He's had success through his career, he's went for big money, he's got great qualities.

"I think of him at his best in the middle of a back three under [Antonio] Conte the year they won the title and I think that was the best position for him."