Longtime MMA Veteran Geronimo dos Santos Drowns in Amazon River

Geronimo dos Santos had 71 fights over the course of his MMA career. | Marcelo Alonso/Sherdog.comFormer heavyweight MMA veteran Geronimo Mondragon" dos Santos drowned Saturday morning after diving into the Rio Negro in the municipality of Sao Gabriel da Cachoeira, in the state of Amazonas, Brazil.

The information about the disappearance was first released on the athlete's own social networks by his brother, Feliciano Borges Neto. According to the account, Mondragon was at the beach with his girlfriend. After taking photos, he decided to go for one last swim before returning home, around 10 a.m. According to Feliciano, dos Santos asked his girlfriend to fetch his things while he went into the…