Translate the following English sentence to French:
"There is no doubt that doping is changing sport and that sport will be changed due to doping, which means it will become absolutely ludicrous if we do nothing to prevent it."
Il est évident que le dopage change le sport et que le sport changera à cause du dopage et que nous en reviendrons aux arènes romaines si nous ne faisons rien pour empêcher cela.