Chelsea have confirmed Jose Mourinho as their new manager after the Portuguese coach agreed a four-year deal to return for a second spell in charge at Stamford Bridge.
The 50-year-old will bring with him Rui Faria, Silvino Louro and Jose Morais as part of his coaching team, each of whom have been appointed assistant first team coaches.
The announcement ends months of speculation and comes just days after his final game in charge as Real Madrid boss, a 4-2 win against Osasuna.
A statement posted on Chelsea's official website read: "Chelsea Football Club is delighted to announce the appointment of Jose Mourinho as First Team Manager.
"Mourinho has signed a four-year contract and will return to the club where he won two Premier League titles, an FA Cup and two League Cups between 2004 and 2007.
Blues chief executive Ron Gourlay said he was delighted to have secured the services of Mourinho, who left under a cloud in 2007 following rumours of a rift with owner Roman Abramovich.
"I am delighted to welcome Jose back to Chelsea. His continued success, drive and ambition made him the outstanding candidate," he said.
'It is our aim to keep the club moving forward to achieve greater success in the future and Jose is our number one choice as we believe he is the right manager to do just that.
'He was and remains a hugely popular figure at the club and everyone here looks forward to working with him again.'
Chelsea will officially unveil Mourinho in a press conference on Monday June 10.
The 'Special One' joins Chelsea after bringing to an end an eventful three-year spell in charge at Real Madrid.
His final season at the Bernabeu was littered with rumours of bust-ups with his players and discontent behind the scenes over his selection policy.
After leaving Chelsea in 2007, the former Porto manager went on to coach Inter Milan to Champions League glory in 2010 before taking over in Madrid, where he won the league title in 2012 and the Copa del Rey in 2011.
Mourinho takes over from interim boss Rafa Benitez, who guided Chelsea to Europa League glory and Champions League qualification during his short spell at the club following Roberto di Matteo's departure in November.
Meanwhile, today is the deadline for season ticket renewals at Stamford Bridge.