Maurizio Sarri has become the latest manager to leave Chelsea after he was named Juventus boss.
Sarri was the 13th managerial appointment made by owner Roman Abramovich since he took over the club in the summer of 2003, with Jose Mourinho and Guus Hiddink each having two spells.
Here, Press Association Sport looks at how those men have fared.
Claudio Ranieri – Sep 2000-May 2004
The Italian was at the helm when Abramovich arrived at Stamford Bridge. After heavy spending he led Chelsea to a second-placed finish in the Premier League and the Champions League semi-finals but faced persistent speculation about his job and was sacked at the end of the season.
Jose Mourinho – Jun 2004-Sep 2007
The Portuguese established himself as a Chelsea hero, winning back-to-back league titles in his first two seasons, one FA Cup and two League Cups. His departure only a month into his fourth season by ‘mutual consent’ was unexpected.
Avram Grant – Sep 2007-May 2008
A friend of Abramovich, Israeli Grant had been appointed technical director in the summer of 2007. He was controversially made manager after Mourinho’s departure and lasted only one season, which saw Chelsea finish second and lose in the Champions League final to Manchester United. He had the best win percentage of any of Abramovich’s managers.
Luiz Felipe Scolari – Jul 2008-Feb 2009
Brazilian Scolari was the first World Cup-winning coach to manage in the Premier League but a poor run of form saw him sacked before the end of his first season.
Guus Hiddink – Feb 2009-May 2009
Hiddink was appointed until the end of the season and combined his duties with his post as Russia manager. He lost only one match and won the FA Cup but could not be persuaded to stay.
Carlo Ancelotti – Jul 2009-May 2011
The Italian enjoyed a dream first season, leading Chelsea to a first ever league and FA Cup double, with his side becoming the first to score more than 100 Premier League goals in one campaign. He was sacked hours after finishing second in his second campaign.
Andre Villas-Boas – Jun 2011-Mar 2012
Hailed as the new Mourinho, Villas-Boas’ tenure at Stamford Bridge was not a happy one. After talk of a player revolt, he was sacked with Chelsea outside the Champions League places.
Roberto Di Matteo – Mar 2012-Nov 2012
The former Chelsea midfielder had been Villas-Boas’ assistant and was made interim manager until the end of the season. FA Cup and Champions League wins earned him a permanent contract but the following season did not go nearly as well and he was sacked.
Rafael Benitez – Nov 2012-May 2013
Benitez was the club’s latest interim manager, and unpopular with Chelsea fans because of his Liverpool past. The Spaniard won the Europa League and led the team to a third-place finish in the league.
Jose Mourinho – Jun 2013-Dec 2015
‘The Special One’ returned to win a third Premier League title in 2014-15 as well as the League Cup but, after signing a new contract, a dismal start to the following season saw him leave the club for a second time.
Guus Hiddink – Dec 2015-May 2016
Hiddink’s second caretaker spell could not match the impact of his first but he did manage to stabilise the club.
Antonio Conte – Jul 2016-Jul 2018
The Italian enjoyed a terrific debut season, with Chelsea dominating the Premier League and winning the title by seven points, but entered his second under a cloud after appearing to criticise the club’s transfer policy. The Blues finished fifth in the Premier League, missing out on a Champions League place, and even an FA Cup win could not save Conte.
Maurizio Sarri – Jul 2018-Jun 2019
The club won Sarri’s first five league games at the helm and were unbeaten in 12, but a relative dip early in the new year put their Champions League qualification in doubt and saw Sarri’s tactics questioned. They recovered to finish third, reached the League Cup final and won the Europa League but still find themselves seeking a new manager.
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Chelsea have announced manager Maurizio Sarri has left the club to take charge of Italian champions Juventus.
The Blues and Juventus have agreed a compensation package, understood to be in excess of £5 million, for Sarri, 60, who signed a three-year deal with Chelsea when appointed last summer.
“Maurizio Sarri is leaving Chelsea football Club to return to Italy and become manager of Juventus,” Chelsea announced on their official website.
“The two clubs have reached an agreement for the early termination of Sarri’s contract with Chelsea FC which had two years left to run and is ending at his request.”
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Tammy Abraham believes Aston Villa’s must-win promotion push was the perfect preparation for Euro 2019.
The striker helped Villa to a dramatic return to the Premier League last season after their stunning late form catapulted them into the Championship play-offs.
Villa won a club record 10 straight games between March and April to gatecrash the play-offs before beating Derby 2-1 in the final to return to the top flight after three years.
Abraham, who scored 26 times while on loan from Chelsea, is now in Italy ready for Euro 2019 with England Under-21s but is already tuned into a winning mentality.
He said: “Absolutely. In the second half of the season we knew we had to win almost every game to have a chance so we went out to every training session up for it.
“There were times I nearly gave up but Jack Grealish would be in my ear telling me to keep going.
“When he was injured he used to phone me telling me to keep it going for him until he got back because he believed he had a chance.
“In January all the Wolves stuff (transfer talk) came out and it was something I looked at but I am so pleased I stuck with my gut instinct.
“Our attitude near the end was ‘If we all turn up nobody else can beat us.’ That is the mentality we need to show out here.
“We need to impose that fear factor on others, make them frightened of us and leave everything on the pitch.”
The 21-year-old also feels he has proved himself again after a disappointing spell at Swansea in 2017/18 when they were relegated from the Premier League.
“Obviously I want to be in the Premier League but things happen in football and after getting relegated with Swansea I had to pick myself up,” he said.
“People were asking if I could do it again in the Championship and I have answered them. I believe in myself, I provided goals and rebuilt my confidence as well.
England face France in their Group C opener in Cesena on Tuesday aiming to go a step further than two years ago.
Abraham was part of the squad in Poland and missed from the spot in the 4-3 semi-final shootout defeat to Germany.
But he will step up again if required even though the miss still plays on his mind.
He said: “Yes, it still hurts but I’ll take it because that’s what makes you who are and gives you the experience you need to move forward. I now know what to expect.
“For me as a striker I will always put myself in that position. I back myself to score every time even though I know realistically I will not score every time.
“It was the first time I had taken a penalty in an international competition and it was a nerve-racking moment.
“But if the situation comes around again I’ll be putting my name up to be one of the five takers.
“I’ve now got that experience and since then I have taken some big penalties for Aston Villa. So I know what the pressure of taking a penalty is like.”