Mikel Arteta insists it is not a gamble to have two top goalkeepers at his disposal after Arsenal completed the loan signing of David Raya last week.
The 27-year-old Spain international has joined from Brentford on a season-long deal in a move that cost the Gunners £3million and can be made permanent next year for £27m.
Raya has been a long-term target for Arsenal, who have sold fellow goalkeeper Matt Turner to Nottingham Forest and loaned Alex Runarsson to Cardiff in recent days.
Bees boss Thomas Frank said on Friday he expects Raya to join Arsenal next summer, saying a loan move made no sense for a goalkeeper of his quality.