Lyon president Jean-Michel Aulas has accused Saint-Etienne goalkeeper Stephane Ruffier of punching him following their game on Sunday.
Remi Garde's side secured a 2-1 win at their local rivals, winger Jimmy Briand heading home the winner in the third minute of injury time after Saint-Etienne's Romain Hamouma had cancelled out Alexandre Lacazette's opener.
The Rhone derby is one of the fiercest rivalries in French football and tensions were increased when local authorities opted to ban Lyon fans from the Stade Geoffroy-Guichard following violent clashes between the two sets of supporters last season.
But it was emotions among the players that spilled over this time around, with Aulas claiming he had been struck by France international Ruffier during unsavoury scenes after the final whistle.
"One of our doctors made a remark on his way back to the dressing rooms. Fabrice Grange, the Saint-Etienne goalkeeping coach, a former Lyon player and France international, thought it was a good idea to hit our doctor," Aulas told Canal+.
"While I was trying to separate them, Stephane Ruffier gave me a big blow on the back."
Controversy dominated the build-up to the game as Saint-Etienne fans attempted to confront Lyon goalkeeping coach Joel Bats after he tied a club scarf to one of the nets.
And Aulas was quick to condemn the home followers for their actions.
"I watched all the hubbub in the stands from the start of the game," he added.
"Their supporters threw toilet paper at our goalkeeper. The officials didn't see the reality.
"Luckily, it turned out well for us. What happened on the pitch is incredible. Some idiots managed to get onto the pitch after Joel Bats put one of our scarves in the goal.
"All of that is a shame as football is a party. With regard to Joel Bats, he was completely right to tie that scarf on. The supporters, who couldn't watch the derby, deserved it."
|Chelsea 1 Norwich City 1 (aet, 5-3 pens): Hazard and Caballero seal Blues progression|
|No generosity from Neymar as Cavani waits to make PSG history|
|Neymar sets Ligue 1 landmark with staggering individual display|
|Espanyol 1 Barcelona 0: Melendo ends unbeaten run|
|Paris Saint-Germain 8 Dijon 0: Neymar hits four as Cavani levels Ibrahimovic record|
|Atletico fan in ´serious condition´ after being stabbed before Sevilla game|
|Atletico Madrid 1 Sevilla 2: Montella´s men stage dramatic first-leg comeback|
|Lukaku will score 30 goals for Man Utd this season, predicts Yorke|
|Liverpool loan Grujic to Cardiff|
|Mbappe: More to come from Neymar & Cavani partnership|
|Messi the greatest ever despite no World Cup win, insists Di Maria|
|Villa determined to earn place in Spain´s World Cup squad|
|Walcott swaps Arsenal for Everton|
|You even learn from Guardiola at home - Otamendi lauds Pep impact|
|Otamendi pens Man City deal to 2022|
|Neymar leads tributes to retiring Ronaldinho|
|Ronaldo must focus on playing - Zidane sidesteps exit talk|
|Zidane still an idol for James despite ´sad´ Madrid exit|
|Stoger will stay at Dortmund if ´everything fits´|
|Bordeaux´s Malcom facing disciplinary action over social media video|
|Ronaldinho retires – The greatest Brazilians to play for Barcelona|
|Athletic reward Williams with contract until 2025|
|Jones taking unlikely inspiration from City in United´s title pursuit|
|Moyes unaware of Chelsea interest in Carroll|
|Verdi wants Bologna stay amid Napoli links|
|Ronaldinho retires – A shining light of Brazil´s 2002 World Cup-winning team|
|Ronaldinho retires – a World Cup and Ballon d´Or among Brazil great´s prizes|
|World Cup glory and Bernabeu magic - Ronaldinho´s best moments for Barca and Brazil|
|Ligue 1 Review: Balotelli at the double as Payet shines and Malcom toils|
|Pato still dreaming of World Cup selection|
|FA Cup Review: Iheanacho makes VAR history, kit confusion reigns|
|2016-17 UEFA Study: PSG, Man City drive record-breaking spending|
|Conte packing in homework as Chelsea games stack up|
|2016-17 UEFA Study: Manchester United record highest revenue but largest debt|
|2016-17 UEFA Study: The headlines in transfers, wages and revenues|
|Iheanacho scores English football´s first VAR goal|
|Materazzi not surprised by Coutinho transfer fee|
|Ronaldinho retires - Brazil and Barca great plans 2018 farewell|
|Koziello swaps Nice for Cologne|
|Simeone ready to unleash Costa and Vitolo alongside Griezmann|
|Lambert ´never thought´ he would return to Premier League|
|Wenger ´very aggressive´ towards referee Dean, says FA report|
|Reported Arsenal target Malcom starts for Bordeaux vs Caen|
|Valverde not making big deal of Dembele´s latest Barca blow|
|Arsenal will have a ´hard time´ signing Malcom|
|Ronaldo and Madrid nominated for Laureus awards|
|Nantes´ Diego Carlos brands Chapron clash ´historic´|
|This is not important - Conte unconcerned if substitutions upset Hazard|
|Conte ´doesn´t think´ Chelsea have pursued Sanchez|
|Emery hints at Neymar return against Dijon|
|Mkhitaryan key to United-Sanchez deal, claims Raiola|
|Tevez: CSL spell was a holiday|
|Mignolet considering Liverpool future|
|Fred waiting for Guardiola call amid Man City speculation|
|Inter confident but patient over Rafinha|
|Giggs had counselling after Old Trafford exit|
|Neville: Mourinho would happily swap Mkhitaryan for Sanchez|
|Man United becoming Pogba´s team – Mourinho|
|Can ´talking with everyone´ but hints at Liverpool stay|