In two years at the Emirates Stadium, Mari has struggled to make an impact, featuring on just 14 occasions in the Premier League.
The last of those outings came in August, when the Gunners were defeated by Chelsea, and the 28-year-old has only made one outing in the EFL Cup since that performance.
Mari allegedly rejected the opportunity of another stint in South America to remain in one of European football's top leagues.
Romano adds that it is a straight loan agreement, with Mari in line to return to the Emirates Stadium in the summer. body check tags ::