Joakim "Jocke" Nyström (born 20 February 1963) is a former top ten ranked tennis player from Sweden who won 13 singles titles during his professional career. The right-hander reached his highest singles ranking on the ATP Tour on 31 March 1986, when he was ranked world No. 7. He was also ranked world No. 4 in doubles that same year. Tennis career. He was a singles quarterfinalist at both the French Open (1985) and US Open (1985, 1986) tournaments, the 1986 Wimbledon doubles champion with Mats Wilander, and a member of the winning 1985 and 1987 Davis Cup teams from Sweden.
https://en.wikipedia.org/wiki/Joakim_Nystr%C3%B6m