The 35-year-old two-time World Cup winner had not played since the end of January due to a groin injury and last month was caught drink-driving in Paris.
According to AFP news agency, the star first five kicked just one penalty before being hauled off to be replaced just after the hour mark with whistles of impatience from his Stade Yves-du-Manoir home crowd ringing in his ears.
The loss left Racing in seventh place, three points outside the play-off places while La Rochelle stretched their lead at the top to eight points.
