Mauricio Pochettino has been sacked as manager of Tottenham, the Premier League club have confirmed.
Pochettino lifted the club to new heights after taking charge in 2014, leading them to a second-placed finish in the Premier League in 2016-17.
That was the second of four consecutive top-four finishes, meaning Spurs became a regular UEFA Champions League fixture on his watch and were beaten finalists in Europe's top competition last season, losing 2-0 to Liverpool in Madrid.
However, a run that featured incredibly dramatic quarter-final and semi-final triumphs over Manchester City and Ajax respectively served to distract from dwindling domestic form that has not picked up this term.
A laboured 1-1 draw against Sheffield United before the international break left Spurs 14th in the table, with three wins and 14 points from 12 top-flight matches.
"We were extremely reluctant to make this change and it is not a decision the board has taken lightly, nor in haste," said Tottenham chairman Daniel Levy in a statement that confirmed coaches Jesus Perez, Miguel D'Agostino and Antoni Jimenez would also leave the club.
"Regrettably, domestic results at the end of last season and beginning of this season have been extremely disappointing.
"It falls to the board to make the difficult decisions - this one made more so given the many memorable moments we have had with Mauricio and his coaching staff - but we do so in the club's best interests.
"Mauricio and his coaching staff will always be part of our history. I have the utmost admiration for the manner in which he dealt with the difficult times away from a home ground whilst we built the new stadium and for the warmth and positivity he brought to us.
"I should like to thank him and his coaching staff for all they have contributed. They will always be welcome here.
"We have a talented squad. We need to re-energise and look to deliver a positive season for our supporters."