David Ornstein reported earlier in the summer that the Gunners were looking for a fee of around £20m including add-ons to sell Nelson.
Nelson still has a deal with Arsenal to 2027, with an option to extend to 2028, so there’s no pressure on Arsenal to accept a lower bid.
The 24-year-old played 639 minutes for the Arsenal first team in 2023/24, and he was on the bench against Wolves on Saturday.