Arsenal did not win a trophy for years, then captured the FA Cup last year to save Gunners boss Arsene Wenger his job.
They are favorites to retain that coveted prize considering 10 other Premier League teams are already out, including Chelsea and Manchester City, who were victims of giant-killers that sparked all the romance of the cup cliches.
The Gunners went into cruise control after going 3-0 up against Brighton in the fourth round on Sunday but almost squandered that lead at the Amex Stadium in winning 3-2.
Best news for Wenger was that Theo Walcott is almost back to match sharpness after long-term injury, plus he scored.
Mesut Ozil also hit the net for the Gunners, which relieved some pressure on whether he deserves a place in the squad after indifferent form.
Bradford City, League One battlers, embarrassed the mighty Chelsea at fortress Stamford Bridge, coming from two down to win 4-2.
No wonder Blues manager Jose Mourinho said he was “embarrassed” and “ashamed” by one of the shock FA Cup results of recent years and one of his worst defeats in all his glorious years in management.
Chelsea are five points clear at the top of the Premier League and have swept all before them for most of the season, but somehow snatched defeat from the jaws of victory by switching off and underestimating the tenacious side from English football’s third tier.
City were embarrassed too, beaten 2-0 at home by Championship outfit Middlesbrough.
The surprising round of shocks began on Friday night when League Two’s Cambridge United held Manchester United to a goal-less draw at home and continued on Saturday lunchtime as Swansea City went out to Championship side Blackburn Rovers.
Then Chelsea were dumped before second-placed City and third-placed Southampton also saw ambitions of a Wembley trip thwarted.
The Saints were beaten 3-2 at St. Mary’s by Crystal Palace, and eight-time winners Tottenham also missed out after conceding twice near the end to lose at home to Leicester City.
Cambridge celebrated as if they had actually won the Cup because a trip to Old Trafford for Wednesday’s replay means a fabulous cash boost for the club’s finances, whatever the result.
The players will enjoy a huge spike in appearance money and if they can pull off the biggest shock and beat United’s multimillionaires, then a pot of gold awaits each of them.