Gurriel (undisclosed) was placed on Triple-A Gwinnett's 7-day injured list Friday, Gwinnett Broadcaster Dave Lezotte reports.
Gurriel had begun playing third base in the wake of a hand injury to Austin Riley, in case he was needed in the majors at the position during the closing weeks of the regular season. However, his 40-year-old body may not be holding up well to the additional defensive responsibilities, although Atlanta has yet to indicate the nature of Gurriel's injury.