Simms, who signed Bolt when he was a 15-year-old prodigy, said it was a genuine possibility.
According to Australian outlet The Daily Telegraph, they are believed to be Bolt's most likely source of a professional deal but several other A-League clubs are interested.
Mielekamp stated that he could debut for the Mariners at some point in the 2018-19 season, which spans 27 matches, and goes on from October 21, 2018 to April 26, 2019.
"From our perspective it will only be big if he can play", he said.
While signings like Bolt might spur an initial curiosity, surely ploughing millions of dollars into turning the A-League into an novelty circus sideshow isn't the most sensible long-term plan. The A-League needed a hero, and we got superman.
"Mainly, a trial, and of course marquee funds support from the FFA".
The fastest man in the world is set to undergo a six-week trial with the Central Coast Mariners.
"If he comes in and he is not up to the level, it could have a detrimental effect". "If it materialises into a contract, that's when we need some funding".
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"We're going through the proper channels; we're just waiting for a reply". But he's never played soccer professionally.
Club officials said "if all goes well", Bolt could be signed for a season.
Former Manchester United assistant and Hull City manager Mike Phelan was appointed the club's sporting director on Monday.
Mariners CEO Shaun Mielekamp said he wanted to finalise any trial arrangement before the end of August.
"We think that his best will be enough to play or play a part in an A-League competition", Rallis said. "Maybe a club will see something and decide to give me a chance", Bolt said at the time.
In May, Bolt trained with Norwegian team Strømsgodset and he trialled with German side Borussia Dortmund in March, although neither offered him a contract.