Manchester United's head coach draws a line under Lisandro Martinez's public attack on the club's hierarchy, confirming the 28-year-old will travel to Elland Road on Sunday.
The Arsenal manager says reducing up to 60 roles is necessary to keep the club moving forward, but the timing alongside his own new contract has drawn scrutiny.
Second-half goals from Timber, Eze and Saka swept Arsenal past a stubborn Lille side who had kept them at bay for an hour.