Manchester United have signed Chile forward Alexis Sanchez from Arsenal, in a swap deal with midfielder Henrikh Mkhitaryan.
The deal which runs for four-and-a-half-years is worth £14m a year after tax and is also worth £600,000 a week.
Mkhitaryan moves in the opposite direction to Sanchez after scoring 13 goals in 63 appearances for United.
The Armenia international moved to Old Trafford from Borussia Dortmund for £26.3m in July 2016.
He has made only 10 Premier League starts this season, and it is understood there was a breakdown in trust between him and Mourinho.
The Chile star, who will earn a basic weekly wage of £350,000-a-week at United, said: ‘I am thrilled to be joining the biggest club in the world. I have spent three-and-a-half wonderful years at Arsenal and I bring with me very positive memories of that great club and its fans.
‘The chance to play in this historic stadium and to work with Jose Mourinho was something I could not turn down.
United’s signing of Sanchez, who will wear the number seven shirt, was announced on the club’s Twitter account with him playing ‘Glory, Glory Man Utd’ on a piano.
? Ladies and gentlemen, please take your seats. Introducing #Alexis7…#GGMU #MUFC @Alexis_Sanchez pic.twitter.com/t9RIIx4mE4
— Manchester United (@ManUtd) January 22, 2018
He will be available for in the Red Devils’ FA Cup fourth-round tie at Yeovil Town on Friday.
The 29 year old scored 80 times for Arsenal since joining from Barcelona for £30m in July 2014, and was the team’s leading scorer in all competitions last season with 30 goals.