David Beckham’s long range screamer got the Red Devils off to a flying start, before Dennis Bergkamp got the Gunners back on level terms to take the game to extra-time.
And the encounter will be forever etched in the memories of both fans for Ryan Giggs sensational winner, as he beat four Arsenal defenders before firing past David Seaman.
Few are expecting such an intense encounter tonight, with both side’s out of the Premier League and under new management.
But one man who will be at the Emirates tonight with fond memories is United caretaker manager Ole Gunnar Solskjaer.
“The semi-final in 99 is such an important game”
Ole Gunnar Solskjaer
“The semi-final in 99 is such an important game,” Solskjaer said.
“When Peter (Schmeichel) saves that pen from Dennis Bergkamp, that gives us the advantage and we win the treble.
“If Bergkamp had have scored, they’d have won the double. That’s just how small the margins are, and I think that’s the standout for me.
“I was substituted so I watched Giggsy’s goal from the sidelines and what a goal that was.
“I think that was the one highlight in the FA Cup, apart from walking out on the pitch at Wembley in 99.”
United legend Giggs also reflected on his match winning antics, revealing he beat the Arsenal defence on pure adrenaline after a “nightmare” start.
“When I got the ball, my feeling was that I was having a bit of a nightmare,” Giggs recalled.
“I’d come on for Jesper Blomqvist after an hour and I kept giving the ball away, so I took the decision that next time I got the ball I was going to have a little dribble.
“So that’s what I did. And before you knew it, it was in the back of the net.
“It wasn’t until I was leaving the ground that I realised it was a good goal. A few reporters grabbed me and asked if that was the best goal I’d ever scored.
“I thought I’d scored a few better and it wasn’t until I watched it that I realised I had beaten that many men.
“It was pure adrenalin, just beating players and not thinking too much about it.”