0541 GMT December 05, 2021
Bolt retired from athletics in 2017 but the eight-time Olympic gold medalist still holds the 100m and 200m world records, goal.com reported.
The 34-year-old clocked a world-record time of 9.58 seconds in the 100m at the 2009 World Championships in Berlin, while he also ran 200m in 19.19s 11 years ago in the German city.
But Bolt feels five-time Ballon d'Or winner and footballer Ronaldo is now faster, given the fact he is still delivering the goods week in, week out at the very highest level.
"For sure Cristiano [is faster than me]," Manchester United fan Bolt, who also tried to forge a career in football post-athletics following trials with the likes of Borussia Dortmund and A-League side Central Coast Mariners, told Marca Sport Weekend .
"For me he works out every day, he is a super athlete.
"He's always on top of his game, he works hard and he is focused. Right now I definitely think he would be faster than me."
Ronaldo has scored six goals in four Serie A appearances for Juventus this season.