have parted ways with Maurice Steijn after the club slipped into the relegation zone at the weekend.
The Dutch giants conceded an injury-time winner to Utrecht to leave the club second bottom of the table.
Ajax have won just once under Steijn, who took charge last and oversaw over £100m of spending.
The Amsterdam club are without a win in their last eight matches, which is the worst run in the club’s history.
With Brighton to come in the Europa League on Thursday and without a win in this season’s competition, Ajax have decided that they can stick with Steijn no longer.
‘Ajax and Maurice Steijn will part ways with immediate effect,’ a statement read.
‘The club management and Steijn have agreed that the coach will step down from his position.’
De Telegraaf claims the Dutchman was informed of his sacking in a meeting at the club’s training ground this afternoon.
It means Ajax will have their fourth manager in 15 months when they announce a replacement.
The club are 22 points behind leaders and rivals PSV Edinhoven.
They finished runners-up to Feyenoord in the league last season.