Real Madrid forward Karim Benzema could be fined by the club after he went skydiving on a mid-season break in Dubai, according to reports.
Contracts signed by Madrid players state that they are forbidden from taking part in extreme sports.
However, images have emerged of the France international partaking in a tandem skydive with an instructor, and Marca have claimed that the European champions will take disciplinary action.
Real punished Asier Illarramendi for going bull running last season, while they have previously penalised Iker Casillas for riding a scooter.