The Athletics outrighted Mondou to Triple-A Las Vegas on Thursday, John Shea of the San Francisco Chronicle reports.
The 27-year-old was promoted for his first taste of the big leagues during the final week of the season, and he went 0-for-2 with a walk and a strikeout in his lone appearance. Mondou had a .283/.374/.431 slash line in 108 games at Las Vegas and is likely to receive an invite to big-league camp in February.