Martinez cleared waivers Wednesday and was sent outright to Triple-A Gwinnett.
Atlanta designated Martinez for assignment Monday.
Atlanta is slated to designate Martinez for assignment, Francys Romero of BeisbolFR.com reports.
Atlanta optioned Martinez to Triple-A Gwinnett on Monday.
Martinez is batting ninth and playing right field Friday against the Nationals.
Atlanta recalled Martinez from Triple-A Gwinnett on Monday, David O'Brien of The Athletic reports.
Martinez is slashing .340/.421/.580 through 13 games for Triple-A Gwinnett with two homers and seven steals in nine attempts.
Martinez was optioned to Triple-A Gwinnett by Atlanta on Friday.
Atlanta acquired Martinez from the Rangers on Friday in exchange for Tyler Owens.
Martinez was optioned to Triple-A Round Rock on Saturday.