Cambridge arrive at the Abbey Stadium with a spring in their step after edging past Barnet 2-1 in the first round. That was a proper cup scrap — the kind of gritty, backs-to-the-wall performance that lower-league sides thrive on. But let's be honest: Barnet are not Millwall. The U's will need a whole different level of intensity here, and their recent league form has been patchy at best. They've got a 1-0 win over Bromley in the rearview, but that was a tight, nervy affair against a side still finding their feet in the third tier. Cambridge are solid, organised, and hard to break down at home, but they lack the cutting edge to hurt a Championship defence.

Millwall, meanwhile, are absolutely flying. They kicked off their cup campaign by knocking out QPR on penalties — Lukas Jensen saving all four spot-kicks, which tells you everything about their nerve. Then they went and scored five goals without reply in two league wins: a statement victory over playoff-chasing Bristol City and a 3-0 demolition of Norwich at The Den. That's not just form, that's a message. The Lions are sharp, confident, and ruthless in front of goal. They've got momentum, they've got depth, and they've got the kind of swagger that travels well. This is a Millwall side that smells blood.