Jose Mourinho looked downcast as he left Tottenham Hotspur's training ground on Monday hours after getting sacked.
Mourinho was removed by Spurs just six days before they play Manchester City in the League Cup final.
Mourinho, 58, was dismissed after only 17 months in charge. Tottenham have been struggling in their bid to qualify for the Champions League, are currently seventh in the Premier League, and and suffered a shock Europa League last-16 exit against Dinamo Zagreb last month.
"The club can today announce that Jose Mourinho and his coaching staff have been relieved of their duties," Tottenham said in a statement.
The news came less than a day after Tottenham announced they were one of 12 clubs planning to launch a breakaway European Super League.
Leipzig boss Julian Nagelsmann is one of the favourites to replace Mourinho, while Leicester manager Brendan Rodgers is also in the race.
Mourinho's exit is the latest setback in a once-glittering managerial career.
The former Porto, Chelsea, Inter Milan, Real Madrid and Manchester United boss was appointed by Tottenham in November 2019 after Mauricio Pochettino was dismissed.
But unlike Pochettino, who led Spurs to the 2019 Champions League final, Mourinho has been unable to get desired results.