The FA Cup 4th Round, 2018-19

The 4th round of the FA Cup has been played (well, almost, as there's still one match to go), and it hasn't disappointed in terms of excitement.

First and foremost, Chelsea went through with little trouble (get in!), but numerous Premier League sides have fallen. Arsenal lost against Manchester United, almost 20 years since the famous semifinal between the two sides. Tottenham lost at Crystal Palace, while Everton and West Ham were both beaten by lower-league opposition and Wolverhampton Wanderers nearly joined them; top division sides being knocked out by teams from lower divisions has been a staple of the FA Cup since the organisation of the Football League, as this video should demonstrate: https://www.youtube.com/watch?v=hrnc-0Z9G0k