There were remarkable scenes during our Emirates FA Cup quarter-final win over the Cottagers in March, with the game turning when Willian handled a Jadon Sancho shot on the line.
Referee Chris Kavanagh did not spot the offence but was called to the pitchside monitor to see the incident clearly and awarded a penalty, while sending off the Brazilian.
Mitrovic, whose goal was separating the teams, was incensed by the decision and confronted Kavanagh, also earning a red card. Bruno Fernandes converted the spot-kick and United went on to win 3-1, en route to next weekend's Wembley final with Manchester City.