Ralf Rangnick has been appointed Manchester United interim manager until the end of the season.
The 63-year-old's contract will see him take charge of the first team until June and then remain at the club for at least a further two years in a consultancy role.
United reached an agreement with Lokomotiv Moscow last week for the release of Rangnick, who was manager of sports and development at the Russian club.
He will take the reins from Michael Carrick, who was in temporary charge of the team for last week's 2-0 Champions League win over Villarreal and Sunday's 1-1 draw at Chelsea in the Premier League following the dismissal of Ole Gunnar Solskjaer.
However, Carrick will remain in charge for Thursday's home game against Arsenal if Rangnick's work permit is not processed in time.
Rangnick told United's website following his appointment: "I am excited to be joining Manchester United and focused on making this a successful season for the club.
"The squad is full of talent and has a great balance of youth and experience. All my efforts for the next six months will be on helping these players fulfil their potential, both individually and, most importantly, as a team.
"Beyond that, I look forward to supporting the club's longer-term goals on a consultancy basis."
United are planning to make a permanent appointment at the end of the season and Paris Saint-Germain boss Mauricio Pochettino is their first choice, with Ajax head coach Erik ten Hag also in their thinking.
Rangnick oversaw the rise of the Red Bull group of clubs in Europe as head coach and sporting director of RB Leipzig and Red Bull Salzburg.
The German is credited with having influenced Jurgen Klopp, Thomas Tuchel and Julian Nagelsmann among many others.
Rangnick invented the 'gegenpress', which translates as 'counter-press'; the high-pressing, all-out running style adopted to great fame by the current Liverpool boss Klopp.
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