Arsenal's ambition to get themselves a third consecutive FA Cup title ended as they were eliminated by Watford.
Playing at home doesn't guarantee any success for Gunners as they already facing problems in breaking down their opponent's defense.
The 45 minutes saw both teams struggling to convert any of their chances as that period ended in goalless draw.
After the break, it was Watford that got themselves in front thanks to an effort from Odion Ighalo who scored on 50 minutes.
Things got even better for Watford when Adlene Guedioura doubled the visitor's lead on 63 minutes.
Gunners continue to press forward in the remaining minutes of that match, but they only managed to pull one back on 88 minutes through Danny Welbeck.