Manchester United signed Brentford winger Bryan Mbeumo's initial £65million.
The 25-year-old has signed a five-year contract and has chosen for 12 months.
He was manager Ruben Amorim's third signing in the summer after the arrival of forward Matheus Cunha and left-back Diego Leon.
Seven weeks after Manchester United's first bid for Cameroon International, Mbemo's move ended the longest legend of the summer.
Last week, it accepted Manchester United's third proposal worth £65 million and £65 million, with its add-ons of £6 million.
“Once I knew I had the opportunity to join Manchester United, I had to take this opportunity to sign for my dream club; my shirt-wearing team grew up.”
The winger is expected to play in the preseason tour in the United States on Thursday.
Since joining from Troyes in 2019, Mbeumo has scored 70 goals in 242 games at Brentford and has scored 51 assists in 242 games.
Last season, he scored 20 goals in the Premier League and scored seven assists – both career-highest.
His departure made him the biggest sale ever made by Bees, eclipsing, with Al-Ahli paying Ivan Toney £40 million in August 2024.