Arsenal are in the market for a new backup goalkeeper during the January transfer window with Alex Runarsson set for a loan exit away from the club in order to gain more first-team experience. 

While the number one spot is pretty secure in the hands of Bernd Leno, the lack of genuine competition could just as easily come back to hurt Arsenal after they sold Emiliano Martinez last summer.

Sergio Romero (Manchester United)

The goalkeeper is on his way out from Manchester United and this could be a good opportunitu for the Premier League giants

Tom Heaton (Aston Villa)

Heaton is Premier League proven and still capable of pulling out a good performance; he’d also be a handy player to have around younger goalkeepers.

Villa will be aware of his abilities, however, and how fortunate they are to have him as backup. It might be difficult to prize him away.

Vicente Guaita (Crystal Palace)

The Crystal Palace shot stopper continues to impress and is out of contract this summer.

Palace signed Jack Butland ahead of the current season, too, who could step up should they allow Guaita to leave ahead of schedule. While it’s not expected that he’ll become an uncaged contract rebel, the potential to move to Arsenal might tempt him at the age of 34.

David Raya (Brentford)

The Spaniard is the latest in a string of talented players to develop their game significantly at Brentford. The 25-year-old is being tipped as the top target for Arsenal and has kept seven clean sheets in the Championship so far this season, although there are doubts over his availability in January. If they can afford it, Arsenal must act now.