Four-time 100m world champion Shelly-Ann Fraser-Pryce says she believes she can keep the younger generation at bay to win Olympic gold in Tokyo.
The 33-year-old became the oldest women to win a world or Olympic 100m title with victory in Doha in September.
She only came back to competition early last year after spending two years away from the sport to have her son Zyon.
"I definitely believe it's possible, considering the year I had and the room to improve," the Jamaican said.
"There are things that I do personally that I missed out on and have gone light on.