The time has come for those tiny non-league football clubs to make their name on the big stage, as finally they get the chance to play against the top flight.
The lowest team left in the competition is Stourbridge from the seventh tier of the league. They are away to Wycombe Wanderers, who are currently in the play-off places of League Two. The other non-league sides left are Lincoln City (away to Ipswich), Barrow (home to Rochdale), Eastleigh (away to Brentford) and Sutton United (home to AFC Wimbledon).
The FA Cup matches start this evening, and over the next four days the BBC and BT Sport will show six live matches between them, as well as the draw for the next round.
West Ham United v Manchester City, on Friday, BBC One at 19.30 (k/o 19.55)
Manchester United v Reading, on Saturday, BT Sport 2 at 12.00 (k/o 12.30)
Preston North End v Arsenal, on Saturday, BT Sport 2 at 17.00 (k/o 17.30)
Liverpool v Plymouth Argyle, on Sunday, BT Sport 2 at 13.00 (k/o 13.30)
Tottenham Hotspur v Aston Villa, on Sunday, BBC One at 15.35 (k/o 16.00)
Cambridge United v Leeds United, on Monday, BT Sport 2 at 19.00 (k/o 19.45)
FA Cup Fourth Round Draw, on Monday, BBC Two and BT Sport 2 at 19.00.