Could Usain Bolt finally be signing for a professional football club?

South African football team Mamelodi Sundowns have hinted that they have signed the world's fastest man Usain Bolt.

Mamelodi Sundowns, who are top of the South African Premier Division, posted a picture of the former sprinter in the club's training kit on Twitter, with the caption, "Football will never be the same. Find out tomorrow [Tuesday] 8am GMT".

Football will never be the same. Find out tomorrow 8am GMT! 😏👆 #Sundowns pic.twitter.com/nifRZFR62s — Mamelodi Sundowns FC (@Masandawana) February 26, 2018

Bolt had already posted on social media on Sunday saying that he had signed for a football team, with an announcement expected on Tuesday at 8am.

The 31-year-old called time on his decorated athletics career last summer, having won eight Olympic gold medals and holding world record times at 100m and 200m.

I've signed for a football team! Find out which one this Tuesday at 8am GMT 👀 pic.twitter.com/iFTlWxfy7x — Usain St. Leo Bolt (@usainbolt) February 25, 2018

Bolt revealed to Sky Sports News in 2016 that he was planning for a football career after retiring from the track and said his ideal destination would be Manchester United - the club he supports.

American athlete Justin Gatlin previously believed the Jamaican could return to the sport for the Olympic Games in 2020 in Tokyo, Japan.

Bolt has previously spent time at the Manchester United training ground

Bolt's final competitive race was at the London World Championships in August 2017 at the Olympic Stadium when his 100m farewell ended in a third-placed finish behind Gatlin and Christian Coleman.