"That's the tough world of professional football", Beretta said.
Bolt captured worldwide attention this weekend when he scored two goals for Central Coast Mariners of Australia's A-League in their friendly against Macarthur South West United.
The 100 and 200 metre world record holder quit athletics a year ago and is now on trial with Australian football club Central Coast Mariners as he looks to achieve his new dream of becoming a professional footballer.
The eight-time Olympic sprint champion, who retired from athletics in 2017, seemed unhappy at being told he was being tested by Asada as an "elite athlete" while on trial for the Mariners.
"Usain Bolt broke the record in Beijing (Olympics) in 2008, and I have followed him for the last year-and-a-half on his football journey", Slimen told the Australian Broadcasting Corporation.
Snowstorm kills 9 climbers on Nepal peak
The record-breaking climber Kim Chang-ho was among those killed in Nepal's worst climbing accident for two years. The previous year, 16 Sherpas were killed on Everest when an avalanche swept through the Khumbu Icefall.
However, on a story post via his Instagram account, Bolt revealed a demand for an out of competition test - to collect urine and blood - that appeared to have been issued by Football Federation Australia (FFA).
"Basically the use of the word slavery is a reference I've used to defend players who want to trade clubs or change jobs in sport... that you can't keep them... it's a free world".
Bolt does not yet have a contract with the Mariners ahead of the start of the A-League season this Friday, with the club's chief executive Shaun Mielekamp saying in a statement that the Jamaican "will continue his indefinite training period. until any further notice".
"How am I going to get drug tested today?"
However, his time in Australia may end up being cut short as agent Tony Rallis confirmed that there is a contract offer on the table for the former sprinter.