EntityQ1269127· pop 15· linked from 626 articlesClark GraebnerSign in to saveUS tennis player and coachConnectionsFrench OpenEntityAustralian OpenConceptUS Open (tennis)ConceptU.S. Men's Clay Court ChampionshipsEntityJohn AlexanderEntityUnited StatesCountryFranceCountryAustraliaCountrySpainCountryBrazilCountryGreeceCountrySouth AfricaCountryRomaniaCountryWorld War IIConceptSaint PetersburgCityWorld War IConceptCOVID-19 pandemicEntitytennisEntityInternational Standard Book NumberEntityCzechoslovakiaEntityCategories1943 births20th-century American sportsmenAmerican male tennis playersDelta Upsilon membersFrench Championships (tennis) championsGrand Slam (tennis) champions in boys' singlesGrand Slam (tennis) champions in men's doublesLiving peopleNorthwestern Wildcats men's tennis playersSportspeople from ClevelandTennis players from New York CityTennis players from Ohio