All Tennis Players How Many Grand Slams Has Thomas Johansson Won? Karl Thomas Conny Johansson (pronounced [ˈtʊ̌mːas ˈjûːanˌsɔn]; born 24 March 1975) is a Swedish retired professional tennis player.Thomas Johansson has won 1 Grand Slam. FacebookTwitterEmail How Many Grand Slams Has Madison Keys Won? How Many Grand Slams Has Jannik Sinner Won? How Many Majors Has John Isner Won?
