The League One Bantams produced one of the biggest cup shocks of all time beating Jose Mourinho’s men 4-2 at Stamford Bridge and now their next mission is a tie at Valley Parade against Premier League outfit Sunderland or Championship side Fulham, who replay next week.
Holders Arsenal face Middlesbrough, who produced another huge shock at the weekend after winning 2-0 at Manchester City.
Manchester United will travel to either Preston or Sheffield United if they can get past Cambridge in their replay, while Liverpool will go to Crystal Palace if they can win their replay at Bolton.
Aston Villa host Leicester in an all Premier League clash and West Brom host West Ham in another all top-flight tie.
The draw for the fifth round of the FA Cup is as follows:
Crystal Palace v Liverpool/Bolton
Arsenal v Middlesbrough
Aston Villa v Leicester
West Brom v West Ham
Bradford v Sunderland/Fulham
Blackburn v Stoke/Rochdale
Derby v Reading
Preston/Sheffield United v Cambridge/Manchester United
Ties to be played across the weekend of February 14 and 15.