Musclemania® Colombia Junior Ruben Caballero is training for MM South America in two months. The 5'7", 198 lbs., 22 year old, lifetime natural says, "Normally I grow into the show as my genetics allow me to grow easily even when dieting. My torso is pretty balanced, but I'm killing my legs and am going to bring to the stage something to talk about! I want to get heavier as I'm getting better by the day."