Ben Tozer's long throw is hooked on by Thomas O'Connor and James Jones acrobatically turns it home.
Every single part of this game is screaming out FA Cup, the energy levels and the atmosphere.
Wrexham just seem to have taken to this game and are really looking to drive on. If they can continue that then Sheffield United have got a tough 45 minutes ahead.
Goodness me. How did Wrexham not equalise there?
Luke Young's shot is saved, Paul Mullin can't knock in the rebound and Sheffield United clear.
Ironic jeers from the home supporters as Chris Basham climbs all over Paul Mullin and Wrexham win a free-kick.