The Brazilian defender has backed the under-fire Gunners boss ahead of a huge Premier League clash at Leicester City this weekend
David Luiz insists that Unai Emery is "trying his best" to transform Arsenal into a major force once again, amid a frustrating run of results at the start of the 2019-20 campaign.
The Gunners have slipped to fifth in the Premier League after 11 fixtures, already six points adrift of fourth-place Chelsea.
Emery's side have only picked up four wins so far and have the second-worst defensive record in the top ten, with 15 goals shipped already.