The greatest prize of all: Shelly Ann Fraser-Pryce holds son Zion after winning the women's 100m final at the Doha 2019 World Championships

Shelly-Ann Fraser-Pryce with son Zyon after her 100m triumph at the 2019 IAAF World Championships in Doha

Shelly-Ann Fraser-Pryce celebrates after winning her fourth 100m world title at the 2019 IAAF World Championships in Doha

Shelly-Ann Fraser-Pryce of Jamaica crosses the finish line to win the Women's 100 Metres final in the Women's 100 Metres final during day three of 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on September 29, 2019 in Doha, Qatar. (Photo by Michael Steele/Getty Images)