Bosnian natural bodybuilder and sports model Erko Jun made his show debut at the '13 Musclemania Universe. The 5'10", 200 lbs., 21 year old trainer's popularity has exploded with many European sports, fitness and consumer magazines and media agencies hot on his trail. Erko just finished a series of shoots with some Eastern Europe magazine, but is back into training. "I love doing all of the photo shoots, but I am back now in Belgium training hard and getting reason for the contest season," Erko explains.