Following the humiliating Copa del Rey final loss against Barcelona, Montella was given the dreaded vote of confidence from the board but a 2-1 reverse at Levante was the last straw as Sevilla's position in the European places has come under threat.
Despite a fine season that saw them knock Manchester United out of the Champions League, recent form cannot be ignored and the team currently sit 7th in the league, behind local rivals Betis.
A run of 19 points from the last 16 games in La Liga has seen an alarming slide as Sevilla are now level on points with Getafe and only one ahead of Girona in the fight for the final Europa League spot.
Joaquin Caparros will take over for the rest of the season.