Ben White is set for his Arsenal medical on Wednesday with a £50m deal for the center-back having been agreed with Brighton last week.
The Gunners had a £40m bid for the defender rejected while an improved offer of £47m was also knocked back before Brighton agreed to the £50m fee and also inserted a sell-on clause.
White was selected by Gareth Southgate for England’s Euro 2020 campaign and played in the two warm-up games against Austria and Romania prior to the start of the tournament.
The 23-year-old joined the Seagulls in 2014 from Southampton and has gone on to make 41 appearances for the club in all competitions.
He enjoyed a series of loan spells before breaking into Brighton’s first team last term.
The England international defender would become Mikel Arteta’s third summer signing following the arrivals of left-back Nuno Tavares from Benfica and central midfielder Albert Sombi Lokonga from Anderlecht.
Arsenal meanwhile are considering a third bid worth in the region of £25m to sign Sheffield United goalkeeper Aaron Ramsdale.