Luiz joined Arsenal from London rivals Chelsea in August with British media reporting he had joined on a two-year deal but his agent told Sky Sports last week the 33-year-old had only signed for one year.
“I’m really happy with David, I want to keep him here with us. He’s been a key role model since I joined,” Arteta said at a news conference ahead of Wednesday’s game against Manchester City as the league resumes following the Covid-19 disruption.
Arteta also said the side needed improvement but was unsure about his options in the transfer market due to the financial impact of the novel coronavirus outbreak.
“We know what we need to improve the team, that is for sure. Whether we’re going to be able to do it the way we want is a different story.”
Arsenal are ninth with 40 points from 28 matches.