The 32-year-old denied the allegations.
This marks Arsenal’s fourth signing of the summer window, following the arrivals of Kepa Arrizabalaga, Martin Zubimendi, and Christian Norgaard.
Both clubs have now finalised the deal, with United determined to secure the forward ahead of their pre-season tour in the United States.
Champions Liverpool face Bournemouth in the season’s opening match as league organisers release the matchday schedules for the upcoming season.
Madrid remains the world’s most valuable football team, now worth $6.75 billion.
Arsenal remain the only English club to have won the European title, with the latest triumph coming 18 years after the club first clinched the tournament.
Just after the restart, Arsenal thought they had equalised through Mikel Merino’s superb header from a Declan Rice free-kick, but the goal was chalked off for offside.
The club confirmed the appointment of former Arsenal midfielder Jack Wilshere, who will handle the final games for Norwich.
The result means Arsenal have progressed in 19 of 21 UEFA knockout ties after winning the first leg at home.
Arsenal delivered a performance for the ages as they thrashed Real Madrid 3-0 in the first leg of their UEFA Champions League quarter-final.
