Karl Hein – On loan at Real Valladolid
Firstly, Estonian goalkeeper Hein is on loan at La Liga side Valladolid, and will return to the Emirates in the summer transfer window.
He has made 28 appearances in La Liga this season, conceding 63 goals and keeping five clean sheets. Hein was the first-choice keeper at Valladolid before he suffered a shoulder injury which is expected to keep him out until May.
If Arsenal are impressed with his showing at the La Liga side, they could make the 23-year-old their backup behind David Raya next season as Neto‘s loan from Bournemouth is due to expire.