Manchester United's FA Cup capitulation brought a huge grin to the face of David O'Leary.
The Irishman was in the stands at Old Trafford, the ground where his former club Leeds United knocked the Red Devils out of the competition five years earlier.
As an ex-Arsenal player, O'Leary was there supporting the Gunners as they recorded a 2-1 victory over Louis van Gaal's side.
Also a former Aston Villa boss, O'Leary has been out of managerial work since leaving UAE club Al Ahli in 2011.
Arsenal won the game through goals from Nacho Monreal and Danny Welbeck, to end Manchester United's last chances of winning a trophy in Louis van Gaal's first season at the club.
While O'Leary was clearly delighted with Arsenal's win, former Gunners assistant Pat Rice was caught next to him not looking so impressed as the cameras panned to him in the crowd.
The former midfielder made more than 550 appearances for Arsenal between 1975 and 1993.