In a summer which has seen Jose Mourinho return to the Premier League, what better time to look for the greatest manager in the history of Chelsea? Sky Sports is launching a vote to discover the best boss in the history of the London club and you can have your say. But who will you chose? Is Mourinho really the Special One or do his achievements compare to Chelsea's first league winner, Ted Drake? Italian pair Roberto Di Matteo and Carlo Ancelotti can also not be forgotten after incredible cup-winning success both at home and abroad. Have your say and we will announce the winner in the week commencing 12th August.
Jose Mourinho (2004-2007 & 2013-Present)
The Special One now claims to be the Happy One after returning for a second spell at Chelsea, where his presence has turned the club into favourites for the Premier League next season in the eyes of many. Mourinho won two league titles - one with a record points tally - an FA Cup and two League Cups during his first stint at Stamford Bridge between 2004 and 2007. His disappointments were in losing two UEFA Champions League semi-finals.
Roberto Di Matteo (2012)
The man who was in charge of Chelsea for their first European Cup win cannot be overlooked despite the fact he was only in caretaker charge at the time. Di Matteo succeeded Andre Villas-Boas having been one of his assistants and went on to defeat Bayern Munich at their Allianz Arena in the UEFA Champions League final in 2012. Liverpool were also beaten in the FA Cup final in the same season.
Carlo Ancelotti (2009-2011)
Amicable Italian Ancelotti won the Premier League and FA Cup Double with Chelsea in 2010 to mean he was taken to the hearts of the club's fans. A slightly underachieving campaign in the following year saw Ancelotti ruthlessly sacked but he became a martyr of sorts in the eyes of supporters. Many think Ancelotti should have been given more time at the helm at Stamford Bridge.
Ted Drake (1952-1961)
Drake was the man who managed Chelsea to their maiden First Division title when winning England's top flight in 1955. It was to be almost 50 years before Chelsea were again to win the championship, with Jose Mourinho the man who ended the wait. Drake is also credited with helping give the club their identity in their Lions crest badge and Blues nickname.
Who do you think has been the greatest manager in Chelsea's history? Have your say via the feedback form below and vote in our poll. Voting closes on 9th August
Who has been the greatest manager in Chelsea's history?
Roberto Di Matteo