All Tennis Players How Many Grand Slams Has Althea Gibson Won? Althea Neale Gibson (August 25, 1927 – September 28, 2003) was an American tennis player.Althea Gibson has won 5 Grand Slams. FacebookTwitterEmail How Many Grand Slams Has Madison Keys Won? How Many Grand Slams Has Jannik Sinner Won? How Many Majors Has John Isner Won?
