His first season saw the team finish 15th in the league and suffer a Europa League final defeat to Tottenham.
Amorim achieved an overall win rate of just 38.71 per cent, the second lowest of any United manager since Sir Alex Ferguson joined in 1986.
In the Premier League, his record was particularly poor, with a win rate of 31.9 per cent and an average of 1.23 points per game, the worst of any United manager in the Premier League era.
His statistics are significantly worse than those of recent predecessors, including Erik ten Hag, David Moyes, Louis van Gaal, Ole Gunnar Solskjaer, and Jose Mourinho.