The two early games see Derby host fellow League One side Barnsley and Swansea travel to Championship rivals Bristol City. Both games kick off at 12:30 GMT.
Here are the teams for each...
I mentioned the fourth-round draw an entry or so back...
Well, that is coming up at around 16:05 GMT today during the BBC's build-up to the Man City-Chelsea game.
It will be hosted by Mark Chapman, with the balls drawn by Emile Heskey and Karen Bardsley.
The fourth round is scheduled to be played between Friday 27 January 2023 and Monday 30 January 2023.