It seems that Watford are going to be very busy on the last weekend in January. According to the Radio Times they've taken the County's place in the 4th round round, so they're away to both Newcastle/Blackburn and Middlesborough. I expect they're hoping Newcastle win their replay so they can play Middlesborough at 2.30 then Newcastle at 5.30. They must have a big squad.

https://www.radiotimes.com/news/tv/2019 ... ch-stream/