The Magpies made sure of their place in the last 16 with a 3-2 victory over AFC Bournemouth at Newcastle’s Benton training base almost a fortnight ago.
And on Tuesday night they learned their fate, when the Blades beat Derby County 2-1 after extra time at Stocksbridge Park Steels’ Bracken Moor ground.
Simeon Oure’s last-gasp strike levelled for Sheffield United in normal time, and they went on to snatch victory courtesy of David Parkhouse, booking a last-eight tie at home to the Magpies.
Further details regarding this fixture will be confirmed in due course.