The Jamaican tweeted to confirm he had agreed a deal with a football team and would be making a further announcement this week.
Sundowns retweeted Bolt's post and followed up with a major suggestion that it is the side the 31 year-old has joined.
"Football will never be the same. Find out tomorrow 8am GMT!" they posed on their official Twitter account, along with a picture of Bold at the club's training ground.
Bolt has regularly expressed a desire to carve out a career in football, having retired from sprinting following the world athletics championships in London last year.
The eight-time Olympic gold medallist has often said he would like to play for Manchester United, the club he supports, while he also recently offered his services to David Beckham's new Major League Soccer franchise, Futbol Miami.
Bolt is also due to take part in a trial with Borussia Dortmund in March.