Crawley Town will be looking to upset the odds when they welcome Premier League side Reading to the Broadfield Stadium on Saturday.
The Reds made the fifth round of the competition last year before falling to a 2-0 defeat at home to Stoke City.
Richie Barker's men also scored a victory over Championship outfit Bolton Wanderers in the League Cup in August and are currently eighth in League One.
Meanwhile, Reading will be looking to make amends for last year's shock exit at the hands of Stevenage last year.
The Royals have won just two league games all season, but did beat Queens Park Rangers in the League Cup in September.
Nicky Shorey (illness) and Jason Roberts (thigh) both face late fitness tests.
Recent form
Crawley: DWLWLW
Reading: LLLDWL
Possible lineups Crawley:
Reading: Federici, Gunter, Harte, Mariappa, Pearce, Tabb, Leigertwood, Robson-Kanu, Guthrie, Le Fondre, Hunt
Sports Mole says: 1-2