Manchester United have announced the departure of Jose Mourinho after two-and-years in charge of the club.
The manager's relationship with executive vice-chairman Ed Woodward has come under scrutiny after a frustrating summer in the transfer market and a poor first half of the campaign.
It follows a trophyless season in which United finished a distant second behind Premier League champions Manchester City and has led to widespread speculation over Mourinho's future.
Since taking over at Porto in 2002, Mourinho had always won the league title in his second season with a club – until last season – but has tended not to stick around much longer. Only his first spell at Chelsea reached a fourth season and even that ended in September 2007 after six games of the league campaign.
Here, Press Association Sport takes a look back at Mourinho's tenures with leading clubs.
Porto
January 23, 2002 – June 1, 2004
Trophies: Primeira Liga 2002-03, 2003-04, Taca de Portugal 2002-03, Champions League 2003-04, UEFA Cup 2002-03
Win rate: 71.7 per cent
Mourinho ascended to the summit of Portuguese football with a treble of league, cup and UEFA Cup after taking over mid-season. He added a memorable league and Champions League double before being head-hunted by Chelsea to take over from Claudio Ranieri.
To put Porto's European achievement in context, just seven different clubs have won the Champions League in the 14 years since – including all four of the clubs subsequently managed by Mourinho.
Chelsea
June 2, 2004 – September 20, 2007
Trophies: Premier League 2004-05, 2005-06, FA Cup 2006-07, League Cup 2004-05, 2006-07
Win rate: 67 per cent
Once more Mourinho made an immediate impact with back-to-back title successes in his first two seasons.
They missed out in his third year and though they softened the blow by winning both domestic cups, a poor start to the following season saw him sacked with the Blues languishing in fifth place – they would eventually finish second.
Inter Milan
June 2, 2008 – May 28, 2010
Trophies: Serie A 2008-09, 2009-10, Coppa Italia 2009-10, Champions League 2009-10
Win rate: 62 per cent
Desperate to show that the disappointing end to his first Chelsea spell was a mere blip, Mourinho bounced back with a trademark start in Inter.
The Nerazzuri were untouchable in Serie A, winning the title by 10 points in Mourinho's first season and holding off a renewed challenge from Roma in a second season which also brought the domestic cup and Mourinho's second Champions League triumph.
His successes persuaded Madrid to negotiate a deal to lure him to Spain.
Real Madrid
May 31, 2010 – June 1, 2013
Trophies: LaLiga 2011-12, Copa del Rey 2010-11
Win rate: 71.9 per cent
Barcelona provided a quality of opposition beyond what Mourinho had faced previously and his rivalry with first Pep Guardiola and then Tito Vilanova in the opposing dug-out proved fiery.
Cup success in his first campaign and the traditional league title in his second proved insufficient to satisfy Real's hunger for trophies and after a barren third season, he returned to the warm embrace of Chelsea.
Chelsea
June 3, 2013 – December 17, 2015
Trophies: Premier League 2014-15, League Cup 2014-15
Win rate: 58.8 per cent
The Blues finished third in a tight Premier League title race in the season he returned, before he kept up his second-season record with a league and League Cup double.
After 16 games of the 2015-16 campaign, though, the club's title defence was in tatters and they almost unbelievably sat just one place above the relegation zone when Mourinho was once more shown the door.
Manchester United
May 27, 2016-present
Trophies: League Cup 2016-17, Europa League 2016-17
Win rate: 58.33 per cent
David Moyes and Louis van Gaal had tried and failed to replicate the success of Sir Alex Ferguson at Old Trafford when they turned to perhaps the biggest name in management.
They won two trophies in his first season at the helm but Mourinho had to watch his former club Chelsea lift the Premier League trophy – followed by his old rival Guardiola as Mourinho's year-two magic finally wore off. A poor start to his third season has seen the pressure intensify following heavy losses to Tottenham, Manchester City and Liverpool, which also saw the Red Devils registered the least amount of points to a Premier League season after 17 matches before he was sacked on Tuesday.
