Who was the personal trainer of Gaddafi 'son Al-Saadi, when he was playing with Perugia in 2003?

Al-Saadi Muammar Gaddafi (born 25 May 1973) is a Libyan retired professional football player. He captained the national team, but his career was widely attributed to the influence of his father Muammar Gaddafi, the country's supreme leader.

In 2003, Al-Saadi signed for Italian Serie A team Perugia, employing Diego Maradona as his technical consultant and Canadian sprinter Ben Johnson as his personal trainer. Benjamin Sinclair Johnson, (born December 30, 1961) is a Canadian former sprinter. He won gold medals in the 100 metres at the 1987 World Championships and 1988 Summer Olympics, before he was disqualified for doping himself with stanozolol, and stripped of his medals.

Ben Johnson also won two bronze medals at the 1984 Summer Olympics, as well as gold medals at the 1985 World Indoor Championships, 1986 Goodwill Games and 1986 Commonwealth Games.

During the 1987–88 season he held the title of the world's fastest man, breaking both the 100m and the 60m indoor World Records before his disqualification.