Chusovitina turning back the clock at her seventh Games

Gymnasts have among the shortest career spans of any athletes, and few make it to more than two or, at the very most, three Olympics. But Uzbekistan's Oksana Chusovitina is taking part in her seventh.

In a sport overpopulated by tiny teenagers, 41-year-old Chusovitina has kept her body "lean and mean" for more than four decades so that she can compete against rivals younger than her 17-year-old son Alisher.

"When I compete ... if they gave a few more marks for age it would have been great," Chusovitina said on Sunday.