Arsenal are being offered the chance to swap Lucas Torreira for another player.
The midfielder has been unhappy ever since arriving from Sampdoria in 2018, with rumours suggesting he wants to go back to Italy.
Diawara is also a defensive midfielder, and he played 30 times for Roma last term.
The 23-year-old is a key player, but may be even better suited to the rough and tumble of the Premier League.
Torreira is a player Arsenal fans respect, but he has never felt fully settled in England.