Miami's Opening Day second baseman, Dietrich last played in a big league game on July 1. He's been out since with a right wrist sprain.
In 49 games for the Marlins, the left-handed-hitting infielder batted .228 with five home runs and 17 RBIs.
Dietrich was optioned to New Orleans in the first half, and in 14 games for the Zephyrs, he batted .345 with seven home runs.
Before being reinstated, Dietrich appeared in five rehab-assignment games with Class A Jupiter, going 5-for-16 with a home run and two RBIs. He went 2-for-5 with a homer for New Orleans on Monday.
Dietrich is a candidate to compete for the second-base job next year.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter @JoeFrisaro. This story was not subject to the approval of Major League Baseball or its clubs.