Fournette was seen shoving Gators defensive backs coach Torrian Gray after a scuffle involving both teams was started by an argument between freshmen cornerbacks Chauncey Gardner (Florida) and Saivion Smith (LSU).
Players and team staff had to be separated near one sideline during warm-ups amid pushing and trash talk between the two sides.
Multiple reports had indicated that Fournette would be out vs. Florida, but after the incident, Fournette went to coach Ed Orgeron and said he wanted to play, according to ESPN's Kaylee Hartung.
It is unclear if the incident motivated Fournette's decision to play.
Saturday's contest is a makeup from the originally scheduled Oct. 8 game in Gainesville, Florida, that was postponed because of Hurricane Matthew.
The game was moved to Baton Rouge, Louisiana, as part of the agreement to reschedule, which was a contentious negotiation that included multiple threats to cancel the matchup.