Arsenal have agreed a deal with Real Madrid for attacking midfielder Martin Odegaard.
The Norway international, who will join for an initial £30m fee plus bonuses, was in London on Wednesday undergoing a medical.
Personal terms are not expected to be a problem and Odegaard is fully vaccinated, so will not have to quarantine.
If he is registered by midday on Friday, Odegaard will be available to face Chelsea on Sunday.
The 22-year-old spent the second half of last season on loan with the Gunners after failing to break into the Real Madrid team under Zinedine Zidane.
He made 20 appearances across all competitions, with one of his two goals coming in the north London derby win over Tottenham in March.
Meanwhile, Arsenal have agreed a deal in principle with Sheffield United for goalkeeper Aaron Ramsdale worth an initial £24m.
The fee could rise by another £6m in add-ons depending on whether Ramsdale becomes the Gunners’ long-term No 1.
Ramsdale has been on Mikel Arteta’s radar this summer, having originally joined Sheffield United from Bournemouth in 2020.