Parents often cheer their children on from the sidelines at sporting events but Biarritz number eight Imanol Harinordoquy's father took his enthusiasm a little too far when he tried to punch a Bayonne player during the Basque derby.
Lucien Harinordoquy, 61, walked onto the pitch early in the Top 14 league game when his France international son clashed with a pair of Bayonne players and attempted to punch one of them, Jean-Jo Marmouyet, in the face.
Before he was able to make contact with Marmouyet, Harinordoquy senior was tackled by Bayonne first five Benjamin Boyet.
The Bayonne president Michel Cacouault condemned the attack and plans to take action against the France loose forward's father.
Biarritz won the game 21-19.
Lucien Harinordoquy has since apologised for his behaviour.