Per Stefan Mikael Simonsson (born 5 January 1960, in Hyltebruk) is a former professional tennis player from Sweden. He enjoyed most of his tennis success while playing singles. During his career, he won 2 doubles titles. He achieved a career-high singles ranking of World No. 49 in 1983 and a career-high doubles ranking of World No. 88 in 1984. He is a brother of fellow tennis player Hans Simonsson. After his career, he coached two top 10 players on the ATP ranking, Magnus Gustafsson and Magnus Larsson. Career 1976–1978: Junior career Simonsson won the Swedish Junior Indoor champion in 1976 as a 16 year old and in 1977 and 1978 the Swedish Junior Outdoor Champion. He played in his first Junior Grand Slam event at Wimbledon in 1977 and made his debut in a senior tournament at the Swedish Open. Junior Slam results – Singles French Open: SF (1978) Wimbledon: QF (1978) US Open: F (1978) 1979–1981 In 1979, Simonsson reached the quarterfinals at the challenger event in Biarritz and he reached the same stage in Brussels and Taipei on the Grand Prix circuit. His best result in 1979 was making the semifinals in Tel Aviv. In doubles and with partner Per Hjertquist, he reached the semifinals in Brussels. Simonsson also made his Davis Cup debut for Sweden during July 1979 in the Europe Zone B, semifinals against Romania. Simonsson started the 1980 season by competing on the challenger circuit, and in May, he reached the final at the Galatina Challenger. On the Grand Prix tour, he made the quarterfinals at Florence and the semifinals in Munich. In doubles, he reached two semifinals, with Hjertquist at Bordeaux and with his brother, Hans in Madrid. Simonsson represented Sweden during the 1980 Davis Cup, playing in both the singles and doubles. In August 1981, Simonsson won his first titles on the challenger circuit when he captured both titles at the Le Touquet Challenger. In the singles, he defeated Georges Goven in the final and in the doubles, he teamed with compatriot Anders Järryd to win the title. Earlier in the year, he played in the singles final at the Torino challenger and with Järryd in the doubles final at the Royan challenger. 1982–1983 During May 1982, Simonsson made his first final on the Grand Prix tennis circuit at the tournament in Florence, where he lost in three sets to the world number