Arsenal boss Mikel Arteta says he will "have conversations" with his players about their behaviour after picking up two FA charges in as many games.
Arsenal have been fined £40,000 for "failing to ensure players conducted themselves in an orderly fashion" against Newcastle on 3 January.
They await the outcome of the same charge relating to Tuesday's FA Cup win at Oxford.
Arteta, 40, said the Gunners would do "anything we can do to improve".
He added: "We will always have conversations with our players and staff to see what we can do better [and if] we have to change any behaviour."
A spokesperson for the FA announced on Friday that Arsenal had admitted the charge relating to their treatment of referee Andy Madley in the 0-0 draw at home to the Magpies in the Premier League.
Arteta said after that match he was "really proud" of his side, who he claimed should have been awarded two "scandalous" penalties.