Usain Bolt will no longer pursue a career as a professional football player.
The eight-time Olympic champion trained with Australian A-League club Central Coast Mariners for two months last year.
But sprint king Bolt left in November because the club could not source financial support to underpin a professional contract for him.
'It was fun while it lasted,' said Bolt. 'I don't want to say it wasn't dealt with properly, but I think we went about it not the way we should.'
He added: 'You live and you learn. It was a good experience - I really enjoyed just being in a team.'
The 32-year-old Jamaican scored twice on his debut for the Mariners in a friendly.
He also trained with clubs in Norway and Germany, but the 100m and 200m world record holder will concentrate on his commercial interests.
'I'm now moving into different businesses, I have a lot of things in the pipeline, so as I say, I'm just dabbling in everything and trying to be a business man now.'
Bolt retired from athletics in 2017.