Arsenal on Monday announced the signing of goalkeeper Alex Runarsson from French side Dijon on a four-year-deal.

The 25-year-old has been brought in to deputize Bernd Leno, replacing Emiliano Martínez who left to join Aston Villa earlier this month.

"I'm just extremely happy, extremely proud, it is a big day for me and my family. I can't wait to get started!" Runarsson told Arsenal.com.

"It is one of the biggest clubs in the world - they've won the Premier League 13 times, the FA Cup 14 times, it is a huge club and obviously playing in the Premier League as well, it is a win-win situation."

Arsenal manager Mikel Arteta hailed the acquisition of the Icelandic shot-stopper, saying he would offer his side more options in the position.

"We want to create healthy competition for places and we look forward to seeing Alex bring further depth to the goalkeeping position."

Runarsson will wear the number 13 shirt.