He retired from tennis due to major hip and knee injuries in 2004 when he was only 27 and competed for just over 8 years on the ATP Tour.

1 Pete Sampras, when Norman pulled off upset by defeating the heavily favored American in four sets.

A month later at Wimbledon, he astonished the tennis world even more when he defeated 2nd seed, 2-time finalist and 2-time semifinalist Goran Ivanišević in the second round in a titanic battle, 14–12 in the fifth set.

A week later, Norman captured his first title on the ATP Tour by winning Swedish Open in Båstad by defeating Spaniard Juan Antonio Marín in straight sets.

Norman experienced tremendous success during the first half of the year: he reached the semifinals of the Australian Open, won the Rome Masters, beating Gustavo Kuerten of Brazil in 4 sets, and was the runner-up at the French Open, where he defeated Thierry Guardiola, Fabrice Santoro, Sargis Sargsian, Andrei Medvedev, Marat Safin and Franco Squillari before Kuerten took revenge in the final, after Norman saved 10 championship points.

[4] After Johansson, Norman left Catella altogether to begin coaching fellow Swedish Robin Söderling who under his wing reached consecutive Grand Slam finals at the French Open in 2009 and 2010, won the Paris Masters in 2010, qualified for the ATP World Tour Finals both years and reached a career-high world No.

4 before they parted by the end of 2010 season as Norman decided that he wanted to spend more time with his young family and Söderling needed a full-time coach.

5 in the world and having just won a title with 2 consecutive top 10 wins in the semifinal and finals with the loss of just 5 games in total during the process.

He eventually decided to coach Stan Wawrinka starting from the 2013 season, who has since won three Grand Slams: the 2014 Australian Open, 2015 French Open, and the 2016 US Open; an ATP World Tour Masters 1000 title at the 2014 Monte-Carlo Masters; and Switzerland's maiden Davis Cup title in 2014, while also qualifying for the Tour Finals every year since their partnership and ending significant losing streaks against Rafael Nadal and Novak Djokovic in the process (as well as earning previously rare wins over compatriot Roger Federer) and reached world No.

One of the best displays of it was 2000 French Open final, when Norman saved 10 championship points before falling to Gustavo Kuerten in the tiebreak of the fourth set.

Norman began playing tennis at the age of 8 when his grandmother gave him a birthday gift a racquet.

He is the oldest child of his father, Leif (who played bandy in the Swedish second division), and his mother, Leena (who was a swimmer on the Sweden national team).