Mkhitaryan arrived in Rome on Monday morning to finalize the deal to AS roma.
Roma will pay Arsenal a loan fee of €3m (£2.7m) with the deal not expected to include an option to buy.
The Armenian joined Arsenal in January 2018. This was part of the deal that saw Alexis Sanchez leave the Gunners for Manchester United.
Sanchez left United after a disappointing year-and-a-half last week, moving to Italy to join Inter Milan on loan.
During his time at the Emirates, Mkhitaryan has scored nine goals in 56 games. He made his most recent appearance as a second-half substitute against north London rivals Tottenham on Sunday.
Alexis Sanchez meanwhile on the other side scored just five goals for Manchester United. According to fans, this has been the worst swap deal of all time in club football.
His teammate Monreal joined Sociedad
Man united’s Chris Smalling too Joine AS roma
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