The Guardians transferred Arias (hamstring) to the 60-day injured list Friday, Tim Stebbins of MLB.com reports.
The move opens up a 40-man roster spot for Stuart Fairchild, who had his contract selected from Triple-A Columbus in a corresponding move. Arias has been sidelined since April 6 due to a hamstring strain that he aggravated last week, but he has been able to resume baseball activities and could still rejoin the Guardians some time in June.