Liverpool defeated Chelsea in a dramatic penalty shoot-out to reach the League Cup quarter-finals, while Manchester City also survived on spot-kicks against Brighton.
Liverpool manager Andoni Iraola praised Alexander Isak for hitting top form, noting that the Sweden striker "feels the trust of everyone" ahead of their League Cup clash against Chelsea.
Mikel Arteta described Arsenal's shock League Cup penalty shootout defeat against fourth-tier Fleetwood Town as 'a very sad day' following a dramatic fourth-round upset.
