Passage: Christian Olsson (born 25 January 1980 in Gothenburg) is a former Swedish athlete competing in high jump and triple jump. He won an Olympic gold medal, one gold and one silver medal in the World Championships and two gold medals in the European Championships as well as a further two golds in the World Indoor championships. He also won the overall IAAF Golden League jackpot in 2004 where he cashed in 500,000 US dollars (after splitting the million dollar pot with Tonique Williams-Darling).

Question: What two competitions does Christian Olsson participate in?
high jump and triple jump