Jose Mourinho has insisted Frank de Boer's "incredible" sacking by Crystal Palace should not come as a surprise.
The Dutchman, 47, was dismissed by Palace earlier on Monday after losing his fourth of four Premier League fixtures at the club in Sunday's 1-0 defeat at Burnley.
His departure comes only 77 days after being appointed to his first job back in management since last season being sacked by Inter Milan in 85, but despite serving so little of his three-year contract, Mourinho believes it has become near-routine.
"I was sacked (by Chelsea) as a champion, (former Leicester manager Claudio) Ranieri was sacked as a champion," said the Manchester United boss, also once of Inter.
"Frank de Boer is sacked after four matches and next season something incredible again, so nothing surprises me. That's the world where we are.
