Thomas Tuchel has been appointed as the new Chelsea Head Coach.
Tuchel, 47, moves to Stamford Bridge after a two-and-a-half year spell at French Champions Paris Saint-Germain, which came to an end last month.
The German is the first of his nationality to manage the Blues and arrives to the Premier League having guided PSG to four major honours and the Champions League final during his time in the French capital.
Prior to that, he spent seven seasons coaching in the Bundesliga, first with Mainz - where he led them into the Europa League - and then a successful period with Borussia Dortmund where we won the German Cup.
'I am grateful'
Tuchel, who has signed an 18-month contract with the possibility of an extension, told chelseafc.com: "I would like to thank Chelsea FC for their confidence in me and my staff.
"We all have the greatest of respect for Frank Lampard's work and the legacy he created at Chelsea. At the same time, I cannot wait to meet my new team and compete in the most exciting league in football.
"I am grateful to now be part of the Chelsea family - it feels amazing!"
He has to build on last season
The German is appointed Heach Coach just 24 hours after Frank Lampard was sacked by the Blues.
Lampard failed to build on last season's fourth-placed finish, with Chelsea's board wielding the axe after two wins in their last eight league matches, and his sacking has divided opinion among the Blues' fanbase.
Tuchel was only sacked by PSG himself last month after a row with sporting director Leonardo.
It was only last season that he led the Parisian's to a domestic treble as well as the Champions League final - going down 1-0 to Bayern Munich.
Werner and Havertz potential
It is hoped that his appointment will help bring the best out of Chelsea's two biggest signings of the summer, German duo Timo Werner and Kai Havertz. He will also be reunited with Christian Pulisic and Thiago Silva - both of whom he coached during spells in Dortmund and Paris respectively.
Tuchel is taking his first training session on Tuesday night and will be in the dugout for Wednesday's Premier League fixture at home to Wolves.