Lucas Torreira is apparently a target for Boca Juniors, with the Uruguayan struggling at Atletico Madrid on loan.
Transfermarkt values him at £19.8, and it would be an incredible coup for Arsenal if they were able to get that sort of fee.
Alexandre Lacazette could also depart, with just over a year remaining on his current deal.
Reports suggest he is willing to depart, and his £31m valuation could see him fetch a significant fee in the summer.
Matteo Guendouzi, too, will likely leave this year after his loan spell at Hertha Berlin, and could fetch £18m.