[TOMT] [Anime] Athlete's body parts are exploding for unknown reasons and a man with a scar on his face has to find out why

It is basically about these athletes who are taking a drug or have some kind of aid to help them improve but it causes their body parts to explode and some die I think, and as a result this man with black hair and a scar has to figure out why. I think the the athletes were using nanotechnology or something to improve their performance.