When it comes to 'forgotten Arsenal signings', Runar Alex Runarsson certainly deserves a mention.
Effectively viewed as a replacement for Emiliano Martinez following his £20million move to Aston Villa, and competition as well as cover for Bernd Leno at the time, the goalkeeper arrived in north London from the French outfit Dijon during the 2020 summer transfer window for a fee believed to have been in the region of £1.5million.
From there he made his competitive Gunners debut against Dundalk in a Europa League group-stage clash, keeping a clean sheet in the process. However, it quickly became clear that Runarsson didn't have a long-term future under Mikel Arteta as his below-par performance against Manchester City in the Carabao Cup did him no favours.