Complex sentence: Roy Emerson is the first male player to win each Grand Slam title at least twice in his career and fourth male player to win all 4 Grand Slams during his career, after Fred Perry, Don Budge and Rod Laver.
Split into simpler sentences: Roy Emerson is the first male player to win each Grand Slam title at least twice in his career. He is fourth male player to win all 4 Grand Slams during his career, after Fred Perry, Don Budge and Rod Laver.