However, the La Liga side have turned down the bid and are holding out for a higher fee.
Now, transfer expert **_[Fabrizio Romano](https://x.com/FabrizioRomano/status/1939289594568032505)_** reports that Mosquera has already reached a full agreement with Arsenal on personal terms.
Mikel Arteta's side are expected to submit an improved offer soon as they step up their summer transfer business ahead of next season.