Grenoble have parted ways with head coach Bernard Jackman according to reports in France on Tuesday.
Jackman took over at the start of the season having previously deputised for Fabrice Landreau, who left the club before the 2016/2017 campaign.
The former Ireland international has now been replaced by assistants Aaron Dundon and Mike Prendergast until the end of the season.
Grenoble are currently in 13th place, one of the two relegation spots from the Top 14, although they may be saved by the news of the merger between Racing 92 and Stade Français, which would see only one team relegated and two come up from the ProD2 to keep 14 teams in the French top flight.
Jackman, who has been with the club for six years, was reportedly told that his contract would be terminated at the end of the season and opted to end his association with Grenoble earlier than scheduled.