Curtis was released from Triple-A Nashville, T.R. Sullivan of MLB.com reports.
Curtis was recalled from Triple-A Round Rock on Saturday, T.R. Sullivan of MLB.com reports.
Curtis was claimed off waivers by the Rangers on Tuesday and optioned to Triple-A Round Rock.
Curtis was designated for assignment by the Phillies on Tuesday.
Curtis was optioned to Triple-A Lehigh Valley on Sunday.
Curtis threw a pair of scoreless innings in Tuesday's loss to the Yankees, hitting a batter and allowing a hit and a walk while striking out one.
Curtis was recalled from Triple-A Lehigh Valley on Friday.
Curtis was optioned to Triple-A Lehigh Valley on Thursday.
Curtis was recalled from Triple-A Lehigh Valley on Monday.
Curtis was claimed off waivers by the Phillies on Monday.