Shawn Johnson was just 16 when she won four gymnastics medals in Beijing. Now she's trying for London, and this time she's the one making decisions about her training.
The Pan Am Games marked the gymnast's first international meet since the 2008 Olympics. She won two medals, but also struggled in her best event.
Nastia Liukin won all-around gold in Beijing, but what has the star gymnast done since then? espnW finds out.
The Beijing gold medalist is mounting a comeback for London -- and putting in tons of sweat along the way.