The Gunners are looking to help fill the position with a number of injuries, Covid problems and Thomas Partey at the Africa Cup of Nations.
Arthur looks set to arrive at the Emirates in the January window Credit: Getty
Mikel Arteta is a big fan of the 25-year-old, and has been keeping tabs on him over the last few seasons.
SunSport understands Juventus are happy for the Brazilian to leave, but want to sign a replacement first.
He is ready to fly in next week and sign until the summer if the move is given the go ahead.
There has already been talks over the loan between the two clubs and the ex-Barcelona star's agent.
Arteta will be without Granit Xhaka for the next three games after his reckless red card at Liverpool on Thursday night.
That leaves them with just Albert Sambi Lokonga and youngster Charlie Patino as their only two central midfielders.
This comes ahead of a crunch North London derby on Sunday against bitter rivals Tottenham.
Arthur is looking to get more first-team action ahead of the World Cup in Qatar with Brazil next summer.
He joined the Old Lady in 2020 as part of a £66m deal which included Miralem Pjanic going the other way.
The Italian giants are also expected to lose Aaron Ramsey this month, which could leave them short in midfield.