Arsenal have signed midfielder Martin Odegaard from Real Madrid for a fee in the region of £30m while goalkeeper Aaron Ramsdale has completed a medical before a move from Sheffield United.
Norway international Odegaard, 22, spent the second half of last season on loan at the Emirates.
He made 20 appearances in all competitions and scored two goals.
England Under-21 international Ramsdale made 38 Premier League appearances for the Blades last season.
He will join Bernd Leno and Runar Alex Runarsson as Arsenal’s goalkeepers.
“There is still some paperwork but his medical is done, still a few things to sort with Sheffield,” Gunners boss Mikel Arteta said.
“Aaron is a talented young keeper with huge experience and has international experience for England. He will bring competition and that’s what we want to create – healthy competition, quality competition in every position. We identified Aaron as the ideal option.”