Arsenal manager Arsene Wenger has confirmed Poland goalkeeper Lukasz Fabianski will join this summer.
The 22-year-old is joining the Gunners from Legia Warsaw.
"That will be done," Wenger told the club website. "He will be our new keeper. He will join next year, be in the squad and compete for a position.
"He is one for the future. We have identified him as having all the qualities to challenge and be one of the future great goalkeepers."
The understudy to Celtic's Artur Boruc in the Poland national team will join Jens Lehmann and Manuel Almunia in Arsenal's keeper ranks.
Lehmann recently signed a one-year contract extension and Almunia is pushing the 37-year-old German for a first-team place.
606: DEBATE
Arsenal boss Arsene Wenger said: "I see Jens as a top-class goalkeeper and Almunia as a top-class goalkeeper, so it will be a battle at some stage because Almunia has improved tremendously.
"Manuel is going up and Jens thinks he is still going up!
"Jens is trying every day to make life difficult for those who compete with him.
"That is very good because it makes those who are competing with him improve as well.
"He is a 100% professional. He gives something to the team as well in the dressing-room if it is needed."
The Gunners have also been linked with Hearts keeper Craig Gordon.