Alan Pardew knows a thing or two about being under pressure.
The Newcastle boss has even had a website dedicated to him named 'SackPardew.com.'
So, when a banner was unveiled by Arsenal fans telling Arsene Wenger to 'say goodbye,' Pardew must have thought 'welcome to my world.'
And that's exactly why the 53-year-old has given the Arsenal boss his backing. Although his way of doing so is perhaps more emphatic than most others.
AP: "Arsene Wenger has done an unbelievable job at Arsenal and in some ways their stadium should be named after him." #NUFC— Newcastle United FC (@NUFC) December 11, 2014
Newcastle meet Wenger's side on Saturday as they travel to the Emirates Stadium for the Premier League's late kick-off.
Sparks have flown between the two teams in the past, with Arsenal once leading 4-0 and Newcastle pegging them back to 4-4.
Pardew and Wenger themselves have both clashed, meanwhile, physically scuffing at one point.
It must be encouraging for the Arsenal boss, however, to know that the man he has made so irate in the past is in his corner.