Jose Mourinho has been appointed Tottenham manager after the sacking of Mauricio Pochettino 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.”
Tottenham reached the Champions League final last season under Pochettino, but lost 2-0 to Liverpool in Madrid.
The Argentine, who was appointed in May 2014, did not win a trophy in his time in charge of the north London club, with Spurs’ last silverware being the League Cup in 2008.
Levy said Mourinho has “a wealth of experience, can inspire teams and is a great tactician”.
“He has won honours at every club he has coached,” he added. “We believe he will bring energy and belief to the dressing room.”
Mourinho still has a home in London and won three Premier League titles – in 2005, 2006 and 2015 – as well as one FA Cup in two spells at Chelsea.
Having taken over at Manchester United in May 2016, he won the Europa League and Carabao Cup with them in 2017.
Mourinho was sacked by the Old Trafford club in December 2018, with the club 19 points behind league leaders Liverpool, and had not managed another side before joining Spurs.
He has also previously managed Portuguese side Porto, where he won the Champions League in 2004.
At Italian club Inter Milan, Mourinho won a league, cup and Champions League treble in 2010 and was named Fifa’s world coach of the year, while he led Spanish team Real Madrid to the La Liga title in 2012.
He takes over a Spurs side that are without a win in their past five games and have slipped to 14th in the Premier League, 20 points behind leaders Liverpool after just 12 matches.
Tottenham Hotspur Supporters’ Trust had said “many fans thought Poch had earned the right” to try to turn around the side’s form and that “there are questions that must be asked of the board”.
Following Mourinho’s appointment, it said it had “concerns about how Jose and our club’s executive board will work together”.
It added: “The club must ensure it does not find itself in the same position in two or three years’ time, and we need to hear from the executive board what the long-term thinking behind this appointment is.”
Mourinho’s first match in charge is a trip to West Ham United on Saturday (12:30 GMT kick-off).
Spurs go to Manchester United on 4 December, and host another of Mourinho’s former teams – Chelsea – on 22 December.
Mourinho has turned down a number of managerial opportunities, including in China, Spain and Portugal, since leaving Old Trafford.
BBC sports editor Dan Roan
Spurs have never hired a manager as expensive or demanding as Mourinho, nor spent the kind of money on players that he became accustomed to at clubs such as Real Madrid and Manchester United.
But Spurs have come a long way in recent years under Pochettino. They have a new £1bn stadium and training ground, and spent four successive seasons in the Champions League.
They now have a European pedigree, and a hugely talented squad.
Mourinho has been out of the game for almost a year but retained a home in London.
His tribulations at Manchester United saw him lose his ‘Special One’ status, but his many achievements in the game still command widespread respect.
Tottenham threw away a two-goal lead as they were forced to settle for a point in their Champions League Group B opener against Olympiakos in Greece.
Two goals in four first-half minutes put Spurs in control, with Harry Kane opening the scoring from the penalty spot before Lucas Moura’s scorching 20-yard finish.
Yet Mauricio Pochettino’s side conceded shortly before half-time through impressive Portuguese winger Daniel Podence’s quality finish.
That lifted the passionate home crowd and Olympiakos equalised from the game’s second penalty, former France forward Mathieu Valbuena beating Hugo Lloris, the current Les Bleus captain, from the spot.
Tottenham’s result means both of last season’s Champions League finalists have failed to win their opening group games, after holders Liverpool were beaten 2-0 by Napoli in Italy on Tuesday.
In Group B’s other game on Wednesday, Bayern Munich beat Red Star Belgrade 3-0 in Germany thanks to goals by Kingsley Coman, Robert Lewandowski and Thomas Muller.
Sloppy Spurs fail to hang on – again
Pochettino’s side showed Herculean spirit to go all the way to the final last season yet were far from their best as they made a shaky return to the competition in the port city of Piraeus.
Having allowed a 2-0 lead to slip against Arsenal in the Premier League on 1 September – again after conceding late at the end of the first half – this is the second time in three games they been left to reflect on what might have been.
With five-time winners Bayern and the unpredictable Red Star, who beat Liverpool last season, also in the group, Pochettino will hope this result does not come back to haunt his side.
Kane won the penalty which led to him breaking the deadlock, the Spurs striker clearly tripped by Tunisia defender Yassine Meriah. Then Moura produced an emphatic finish after Ben Davies marked his return by winning back possession and laying on the pass for the Brazil winger to score an outstanding goal.
On a night of missed opportunities, Kane could have had a hat-trick.
Yet, on two separate occasions, Dele Alli – making his first start of the season – and substitute Erik Lamela decided to go for glory instead of choosing the easier option of squaring to Kane to score.
Away day trouble for Spurs
Having failed to win any of their first three group games last season, Tottenham know a point in Greece could yet prove critical.
Yet they have won just five of their 17 away games in all competitions this calendar year, including an FA Cup tie at then-League Two club Tranmere Rovers.
Since winning 2-1 at Fulham in the league on 20 January, Spurs have managed just two victories on the road – both in Europe, against Borussia Dortmund and Ajax.
It is something of a worry for Pochettino, who heads straight back to England with his squad to prepare for a Saturday lunchtime game at Leicester City.
It could have been worse.
When the game was goalless and during a slow start by the visitors, Olympiakos hit the post through Miguel Angel Guerrero.
That prompted Pochettino to leap out of his seat and make it known from the sidelines that he was not happy by his side’s performance.
His actions had some impact as Spurs raced into a 2-0 lead before being pegged back on a deeply frustrating night.
Man of the match – Daniel Podence (Olympiakos)
Letting it slip – the stats
- This was the second time that Tottenham have failed to win a Champions League game having been two goals ahead – and the first since drawing 2-2 with Werder Bremen in September 2010.
- Since the start of last season, Spurs have conceded more goals than any other side in the Champions League (21).
- Olympiakos are without a win in nine Champions League matches, their longest winless run in the competition.
- Only Ruud van Nistelrooy (19) and Roberto Soldado (19) scored their first 15 Champions League goals in fewer games than Harry Kane (20).
- Lucas Moura scored just his second goal from outside the box for Tottenham in all competitions – and his first since August 2018 against Fulham.
Tottenham are back in Premier League action at 12:30 BST on Saturday when they are at Leicester City, while their next Champions League Group B game is at home to Bayern Munich on 1 October.
Holders Liverpool will face Napoli, Salzburg and Genk in the Champions League group stage this season.
Premier League champions Manchester City were drawn alongside Shakhtar Donetsk, Dinamo Zagreb and Atalanta.
Last year’s runners-up Tottenham are in a group with five-time European Cup winners Bayern Munich, plus Olympiakos and Red Star Belgrade.
Chelsea must negotiate a group including 2019 semi-finalists Ajax, Valencia and Lille.
European heavyweights Paris St-Germain and Real Madrid were drawn together in Group A while former winners Barcelona, Borussia Dortmund and Inter Milan will all meet in Group F.
This year’s group stage begins on Tuesday, 17 September while the final is on Saturday, 30 May at the Ataturk Stadium in Istanbul.
Group stage draw in full:
Group A: Paris St-Germain, Real Madrid, Club Bruges, Galatasaray
Group B: Bayern Munich, Tottenham, Olympiakos, Red Star Belgrade
Group C: Manchester City, Shakhtar Donetsk, Dinamo Zagreb, Atalanta
Group D: Juventus, Atletico Madrid, Bayer Leverkusen, Lokomotiv Moscow
Group E: Liverpool, Napoli, Salzburg, Genk
Group F: Barcelona, Borussia Dortmund, Inter Milan, Slavia Prague
Group G: Zenit St Petersburg, Benfica, Lyon, RB Leipzig
Group H: Chelsea, Ajax, Valencia, Lille