Gabriel was reportedly blown away by Mikel Arteta after a phone call with the Arsenal boss.
The Brazilian defender is expected to complete a £21.6m switch to the Gunners from Lille on Monday.
Napoli matched the same offer but the Express says Gabriel decided on north London after a chat with Arteta.
Manchester United and Everton have also been linked with the 22-year-old.
But Arsenal fans are eagerly awaiting the announcement of Gabriel's signing as Arteta continues to change his squad for the upcoming season.
