Arsenal defender David Luiz admits the players let down sacked manager Unai Emery.

Luiz made the confession in a tribute to Emery.

He posted to social media: "Sad day for everybody, especially because we let u down Boss, sorry.

"Thank you and the amazing staff for everything. You are a hard worker, passionate for football and a big example always, doesn't matter the results.

"Good luck for the future."