Bela Karolyi, the legendary and controversial Romanian American gymnastics coach who helped lead Mary Lou Retton, Nadia Comaneci and Kerri Strug to Olympic gold, has died, USA Gymnastics announced.

Karolyi and wife Martha trained multiple Olympic gold medalists and world champions in the U.S. and Romania, including Nadia Comaneci and Mary Lou Retton. "A big impact and influence on my life ...