Ties from the third-round conclude tonight ( Wednesday, 24th September ).
The draw for the fourth-round will subsequently take place at circa 22:20 BST , following the conclusion of the Round Three tie between Port Vale and Arsenal.
Sky Sports presenter Simon Thomas will host the draw, alongside former Liverpool and England player Jamie Redknapp and former Sheffield United midfielder Michael Brown.
Following this, the Eagles will know exactly who our opposition will be in the next round.
What ball number are Crystal Palace?
Crystal Palace will be ball number 5 in the draw.
The full list of numbers is as follows:
Brentford
Brighton & Hove Albion
Cardiff City
Chelsea
Crystal Palace
Fulham
Grimsby Town
Liverpool
Swansea City
Wolverhampton Wanderers
Wrexham
Wycombe Wand