Arsenal captain Cesc Fabregas was impressed by Chelsea defender David Luiz's performance in victory over Manchester United.
Luiz hit a superb goal in the 2-1 win.
Cesc tweeted: "David Luis is looking to be a very good player and still only 23.
"Hes got class. Defenders playing well with the ball always my favourites."
Click here for the No1 coverage of all the gossip and transfer news around Arsenal.