All teams in Ligue 1 and Ligue 2 this weekend have shirts featuring numbers in rainbow colours as part of the initiative. The captains' armbands are similarly coloured.
Moroccan Aboukhlal, a regular starter for Toulouse, sat out the game because he refused to wear the jersey, according to La Depeche du Midi newspaper, which added that Logan Costa and Fares Chaibi also did not want to play although they were both named on the teamsheet.
As part of the elite French leagues' annual anti-homophobia campaign, the rainbow-adorned shirts will be sold at auction with the proceeds going to three charities active in fighting LGBTQ discrimination.
The start of the Toulouse-Nantes match was pushed back to 1630 CET because of a security operation which saw the stadium evacuated as police inspected the area reserved for the visiting supporters.