This left Tregaro and the young triple jumper Christian Olsson without a coach.
This led to Yannick's decision to begin coaching, his first athlete being the young Olsson.
In 2004, Tregaro coached Olsson to a gold medal in the Triple Jump at the Athens Olympics.
Bergqvist tore her Achilles tendon in July 2004, making her ineligible for the Athens Olympics.
[3] She made a comeback to win a gold medal in the high jump at the 2005 World Championships in Athletics.