Most of the Premier League big boys have safely made it through to the FA Cup fifth round.
Manchester United beat rivals Liverpool in Sunday's teatime match, while a Tammy Abraham hat-trick helped Chelsea to a 3-1 win over Luton earlier in the day.
Manchester City also beat lower-league opposition, although they were given a scare by League Two Cheltenham before eventually winning 3-1.
One club that hasn't made it is Arsenal, the current holders who lifted the trophy for a record 14th time last season. The Gunners slipped to a 1-0 defeat at Southampton.
The final non-league side, Chorley, from the National League North, are also out after losing 1-0 to Wolves on Friday evening.
The draw for the FA Cup fifth round was made two weeks ago, at the same time as the fourth round draw.
Now, with nearly all fourth round ties complete, the final fixture list for the next stage of this year's competition is coming together.
FA Cup fifth round fixtures
Eight matches will be played in the FA Cup fifth round.
So far 14 of the 16 teams have been confirmed as two fourth-round ties - Wycombe Wanderers vs Tottenham Hotspur and Bournemouth vs Crawley - still need to be played across the next few days.
The current fixture list is:
Burnley vs AFC Bournemouth or Crawley Town
Manchester United vs West Ham
Sheffield United vs Bristol City
Wolves vs Southampton
Barnsley vs Chelsea
Everton vs Wycombe Wanderers or Tottenham Hotspur
Swansea City vs Manchester City
Leicester City v Brighton