United swept aside Cheltenham in the Third Round with a 1:4 rout, and they then eased past Millwall 3:0 at Bramall Lane last week.
The opposition gets arguably tougher tonight, though, when Blackpool come to town.
The Seasiders Academy edged past Birmingham in the Fourth Round last week 4:3, and they will travel to South Yorkshire on the back of their senior team losing a two-goal lead to Manchester United and eventually being on the end of a 2:3 defeat in the Premier League last night.
Tickets for tonight's match cost £3 for adults and free for concessions.
Kick-off is a 7:00pm.
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