He has spent the last six years in Major League Soccer with Los Angeles FC, for whom he is the all-time top scorer with 78 goals in 152 league games, and he last played for the California club in October 2024.
He has been without a club since leaving Sevilla at the end of last season, having featured against the Gunners in two European ties last season.
The Brazilian was linked with a Premier League switch in his younger days, with Tottenham regularly mentioned, but he's now 35 and without a club since leaving Coritiba after suggesting he wanted a return to former side Internacional.
With Gabriel Martinelli now expected to miss around a month of football, and Kai Havertz now expected to miss the rest of the campaign after suffering an issue during the Gunners' warm-weather camp in Dubai, Mikel Arteta's options are looking thin on the ground.
Clubs who haven't filled up their 25-man allocation for their Premier League squad - and Arsenal are one of those - can still add free agents outside the window.
