Jose Mourinho has been appointed Tottenham manager, succeeding Mauricio Pochettino who was sacked on Tuesday.
Former Chelsea and Manchester United boss Mourinho has signed a contract until the end of the 2022-23 season.
“The quality in both the squad and the academy excites me,” said the 56-year-old Portuguese. “Working with these players is what has attracted me.”
Spurs chairman Daniel Levy said: “In Jose we have one of the most successful managers in football.”
Mourinho has been out of work since being sacked as Manchester United manager in December 2018.
He takes over a Spurs side that are 14th in the Premier League and without a win in their last five games.
The immediate former manager Mauricio Pochettino was sacked after five years in charge of the Premier League club.
Spurs have made a disappointing start to the current campaign and are 14th in the Premier League.
“We were extremely reluctant to make this change. It is not a decision the board has taken lightly, nor in haste,” said Spurs chairman Daniel Levy.
“Regrettably domestic results at the end of last season and beginning of this season have been extremely disappointing.
“It falls on 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.”
Pochettino was appointed in May 2014 and led the club to the Champions League final last season, where they lost to Liverpool in Madrid.