Naile was optioned to Triple-A Memphis on Friday.
Naile was called up as the 27th man for Thursday's doubleheader, so it's no surprise he's headed back to the minors. The 29-year-old didn't allow a baserunner over two-thirds of an inning Thursday and has given up only two hits with a 4:0 K:BB across six major-league frames overall this year.