The Potters levelled the tie on aggregate after Marko Arnautovic scored on the stroke of half-time despite Liverpool’s protestations that the Stoke forward was offside.
Emre Can had a couple of long-range attempts on Jack Butland’s goal but Liverpool failed to register a shot on target in 90 minutes.
The sides couldn’t be separated in extra time but Peter Crouch, Emre Can and Marc Muniesa missed their penalties to allow Allen to covert the winning spot-kick.
Here is a selection of the best Twitter reaction from the professionals, past and present, in chronological order as Liverpool reached another League Cup final.
Former Reds defender Dominic Matteo is ready for the second leg:
— Dominic Matteo (@Dominicmatteo21) January 26, 2016
Suspended Stoke defender Geoff Cameron is thrilled to see his team-mates level the tie up:
— Geoff Cameron (@GeoffCameron) January 26, 2016
Safe to say John Aldridge isn’t impressed:
That's as bad a 1st half performance I've seen at anfield for some time!bad linesman decision apart.
— John Aldridge (@Realaldo474) January 26, 2016
Some sarcasm from an Everton legend to brighten up an otherwise dull affair:
Definitely offside, I won't sleep tonight !
— Peter Reid (@reid6peter) January 26, 2016
But the second leg soon livens up a penalty shootout:
Anyone else about to watch the penalties?! Go reds! @lfc
— Caroline Wozniacki (@CaroWozniacki) January 26, 2016
— Linda Pizzuti Henry (@Linda_Pizzuti) January 26, 2016
Get in!!!!! Back to Wembley!! Well done boys..congrats!!💪
— Pepe Reina (@PReina25) January 26, 2016
Well played @SMignolet big saves!
— David James (@jamosfoundation) January 26, 2016
Freaking love it!! Get in @LFC!! Thank you Mignolet
— John Arne Riise (@JARiiseOfficial) January 26, 2016
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