It was four going on eight as the Gunners fell apart and in the end they were flattered by a 5-1 defeat.
A week on and they meet again but it's at the Emirates – where Liverpool lost 2-0 earlier in the season – and Arsene Wenger is hinting at putting out a full side even with a Champions League tie coming up.
He needs the trophy really after eight years without one but while their Liverpool result was dire I was disappointed in their display against Man United in midweek.
They were one-paced and dimensional and to in effect settle for a 0-0 was a poor show.
If Arsenal play that way again – and they don't have any better players to come in – they are there for the taking and Liverpool must fancy their chances.
William Hill make both sides 17-10 which shows how difficult it is to predict while the draw is 5-2 at Ladbrokes. A stalemate is possible but Liverpool must have a psychological edge and I'm taking a chance on them.
There are plenty of first-scorer candidates but Daniel Sturridge’s form is hard to ignore – he's scored in his previous eight and against the Gunners last week – and he is 2-1 at Stan James to notch at any time.
Here are some stats and facts taking from the Oddschecker app that may help you decide.
These two have met in the FA Cup in 12 previous seasons with the Gunners coming out on top seven times (including winning two finals), with the Reds winning one final and progressing on four additional occasions.
Arsenal have lost just one of their last eight FA Cup matches against Liverpool, winning four and drawing three with that defeat coming in the 2001 final.
The Gunners are yet to concede a goal in the competition this season and have kept three clean sheets in their last five FA Cup games. Arsenal are 3-1 to keep a clean sheet with Paddy Power
Arsenal have only lost one of their last 36 FA Cup home games, against Blackburn last season, with their previous FA Cup defeat on home soil coming against Leeds in 1997.
Liverpool have won just two of their last six away FA Cup games, losing three and drawing one.
Arsenal have kept 11 clean sheets in their last 12 competitive matches at the Emirates Stadium.
Liverpool have not lost any of their last nine competitive matches, winning seven and drawing two.
(17-10, William Hill)
Sturridge to score
(2-1, Stan James)