The Armenia international started against Newcastle (opens in new tab) on the opening weekend but has since slipped down the pecking order at the Emirates Stadium.
And Unai Emery is willing to let the former Manchester United (opens in new tab) man depart for Serie A, say reports.
Roma will sign Mkhitaryan on a season-long loan with an option to buy the 30-year-old outright next summer.
The attacking midfielder has made 58 appearances for the Gunners since joining the club in January 2018.
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Greg Lea is a freelance football journalist who's filled in wherever FourFourTwo needs him since 2014. He became a Crystal Palace fan after watching a 1-0 loss to Port Vale in 1998, and once got on the scoresheet in a primary school game against Wilfried Zaha's Whitehorse Manor (an own goal in an 8-0 defeat).