Chelsea will be allowed to bring on a fourth substitute when we play Manchester United on March 13 in an FA Cup quarter final clash. This is due to new FA Cup rules that allow teams in the quarter finals, semifinals and finals to bring on a fourth substitute during extra time.
Speaking about the fourth substitution trial, FA chief executive Martin Glenn said: “The Emirates FA Cup is renowned for its great history and tradition but, as the game’s governing body, it is important The FA continues to look at how it can further add to the drama and spectacle of a competition loved by millions around the world.
“With The Cup now adopting a straight knockout format from the quarter finals onwards, the introduction of a fourth substitute in extra time will bring extra intrigue and interest.
“Also, from a technical point of view, it will be interesting to see how managers use the chance to make an additional substitution in such high-profile games and the impact it has on the final result.
“Player welfare and being mindful of the number of games people play at the elite level has also been a consideration.”
The FA Cup will adopt a straight knockout format from the quarter final stage. There will be no replays.