Crossword Clue:

One of four in a grand slam

AnswerCrossword Clue
RBIOne of four in a grand slam
RBIOne of four in a grand slam: Abbr.
PGAOrganizer of one of four Grand Slam events: Abbr.
AGASSIWinner of all four Grand Slam singles events in tennis
RBISA grand slam earns four: Abbr.
EVERTTennis star who won at least one Grand Slam title for a record 13 straight years