Arsenal have Ramsdale that has been doing well for them,making some very important saves last season,but from the look of things in this preseason,it really looked like Ramsdale is becoming reluctant in making attempts to make some important saves the way he was doing before,and if Arsenal should sign this Raya,Ramsdale will be conscious of himself and try to be at his best every time,and then,the new Keeper will be feeling frustrated at the bench because I still believe Ramsdale is far more better than him.To me,this is just an attempt to make Ramsdale serious about keeping because he is the current number one,and they will find it difficult to get a goalie that will be as good as him.All he needs to do is to train more harder ahead of the season and to be at his best again.
Next season, Arsenal will play in UEFA Champion League and difference last season participants in Europe League only, I think Arsenal need the same quality level between main player and reserve. But goal keeper seems not really urgent for Arsenal signing new player due consistency from Aaron Ramsdale, he was success play all Premier League games last season and become most appearance Arsenal player with playing 38 games.
David Raya is good goals keeper and has consistent performance last season with Brentford, its will give competition between Aaron Ramsdale and Arsenal have good keeper for next season, not easy for signing David Raya and Arsenal should spent much expensive transfer fees for signing Spain goal keeper.