While making a start for Triple-A New Orleans on Wednesday, the 24-year-old left-hander rolled his right ankle while fielding a bunt down the third-base line in the first inning and ended up coming out before the start of the second.
As of right now, Miller is still being evaluated, but the initial reaction of vice president of player development and scouting Jim Fleming is that it shouldn't be too serious. Fleming said he expects Miller to be put on the shelf for about a week or two, though that is still pending evaluations.
Miller, who gave up six runs on three hits and nine walks in 4 2/3 innings for the Zephyrs on Friday, yielded four runs in his lone inning of work. After pulling up lame fielding the swinging bunt, he stayed in the game and recorded a strikeout on the No. 9 hitter, the pitcher. Then, after coming out for the second inning and warming up, he was taken out for precautionary reasons.
"Not good; not good," Marlins manager Fredi Gonzalez said. "He rolled his ankle and came out of the game. That was it. I haven't heard from him."
Miller was 3-5 with a 4.81 ERA in 16 games (14 starts) for the Marlins this season. The Marlins already have a hole in the No. 5 spot in the rotation, which will come up on Saturday, and have Rick VandenHurk, Thursday's starter, slotted in the back end.
In his three starts since being sent down to the Minor Leagues, lefty Sean West has given up nine runs in 15 1/3 innings -- a 5.33 ERA -- for Double-A Jacksonville. The 23-year-old pitched on Wednesday, giving up three runs in five innings, meaning he won't be in line to make Saturday's start for the Marlins. Burke Badenhop, currently serving a three-game suspension, appears to be the leading candidate.
Alden Gonzalez is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.