 Complete the following phrase:  Per Nilsson of Sweden became the head coach of team US in 2006. Burke, whose results soon improved markedly under Nilssons guidance, credits the Swede with teaching me what hard training really looks like. The 200607 season was a great success for Burke, who got the first World Cup point of his career already in the season-opening 20 km individual at Östersund, Sweden with a 30th place and followed up with another five points finishes, including the first top 10 finish of his World Cup career in a sprint at Hochfilzen, Austria. Burke got his season-best 6th-place finish in a mass start at Pokljuka, Slovenia on January 21, 2007. At the 