Olga Korbut
Olga Valentinovna Korbut , also known as the Sparrow from Minsk, is a Belarusian former gymnast who won four gold medals and two silver medals at the Summer Olympic Games, in which she competed in 1972 and 1976 for the Soviet team.
Korbut was born in Grodno. She started training at age 8, and entered a Belarusian sports school headed by coach Renald Knysh at age 9. There, Korbuts first trainer was Elena Volchetskaya, an Olympic gold medalist , but she was moved to Knyshs group a year later. Initially he found her lazy and capricious but he also saw potential in her great talent, unusually supple spine, and charisma. With him, she learned a difficult backward somersault on the balance beam. She debuted this at a competition in the USSR in 1969. In the same year, Korbut completed a backfliptocatch on the uneven bars this was the first backward release move ever performed by a woman on bars.
Source: Wikipedia