Back in 2011, when the two Manchester teams played against each other at Wembley in an FA Cup semi-final, dramatic fights broke out between fans near the stadium and 34 arrests were made.

Source: https://metro.co.uk/2023/06/03/fans-clash-with-police-outside-wembley-as-fa-cup-final-kicks-off-18891558/

Brighton will now face Manchester United in the FA Cup semi-final on Sunday, while Chelsea will turn their attention to the UEFA Champions League quarter-final second leg tie against Real Madrid on Tuesday.

Source: https://thewillnews.com/paraguayan-teenager-enciso-fires-brighton-to-crucial-2-1-victory-over-chelsea/?utm_source=rss&utm_medium=rss&utm_campaign=paraguayan-teenager-enciso-fires-brighton-to-crucial-2-1-victory-over-chelsea

Chesterfield's 1997 squad share took part in an FA Cup semi-final against Middlesbrough.

Source: https://www.derbyshiretimes.co.uk/heritage-and-retro/retro/21-momentous-occasions-in-chesterfield-from-the-iconic-crooked-spire-being-engulfed-in-flames-to-chesterfield-fc-scoring-against-chelsea-3906267

Despite going into the match as underdogs, Arteta’s men will be buoyed by the fact that their last victory over City came at Wembley three years ago, when they defeated the Citizens 2-0, against all odds, in a FA Cup semi-final match.

Source: https://pmnewsnigeria.com/2023/08/05/fa-community-shield-arsenal-battle-manchester-city-sunday/

"For them to be able to sing about going to Wembley this year, in an FA Cup semi-final, is beyond their wildest dreams, really.

Source: https://www.heraldscotland.com/sport/23470798.stuart-mccall-daunting-man-city-challenge-rangers-ticket-mix/?ref=rss

MANCHESTER: Manchester United set up a FA Cup semi-final against Brighton in remarkable fashion as Fulham captain Aleksandar Mitrovic was sent off for pushing the referee in a 3-1 defeat at Old Trafford on Sunday (Mar 19).

Source: https://www.channelnewsasia.com/sport/manchester-united-capitalise-fulham-red-mist-reach-fa-cup-semi-finals-3358256?cid=cna_flip_070214

One picture contains a copy of the Standard from March 12, 1932, with a front describing how Chelsea fans prepared for an “all-night coach ride” to watch their side play Newcastle United in an FA Cup semi-final.

Source: https://www.standard.co.uk/comment/rishi-sunak-boris-johnson-partygate-privileges-committee-debate-vote-b1088822.html

Players were also targeted at Manchester City’s FA Cup semi-final tie with Sheffield United at Wembley in April 2023.

Source: https://metro.co.uk/2023/10/20/football-stars-suffer-hate-abuse-with-no-action-in-majority-of-cases-19695980/