UPDATE: Bryan Hoch of MLB.com reports the Yankees have optioned Copy Eppley to Triple-A to make room for Mitchell.
A tenth round pick in the 2008 draft, the 24-year-old righty has a 3.02 ERA and 149 strikeouts in 202.1 innings as a starting pitcher at Triple-A Scranton/Wilkes-Barre over the last three seasons.
Though no corresponding move has been officially announced yet, Andrew Marchand of ESPN New York speculates that the move could indicate that Freddy Garcia is out of the Yankees' starting rotation and David Phelps is in:
Yankees have called up D.J. Mitchell, which could mean Phelps is in the rotation. Stay tuned.— Andrew Marchand (@AndrewMarchand) April 29, 2012
Phelps, 25, has allowed seven runs and struck out 12 in 14 2/3 innings of work out of the bullpen, while the aging Garcia has allowed 14 runs in just 12 innings of work over three starts.
If Phelps does take Garcia's spot in the rotation, Mitchell will likely take over Phelps' role as the Yankees' long reliever.