Original sentence: Agassi is, with Rod Laver, Don Budge, Fred Perry, Roy Emerson, and Roger Federer, one of only six men to have achieved a Career Grand Slam, one of only three (with Laver and Federer) since the beginning of the Open Era, and the first male player to have achieved a Career Golden Slam
Edited sentence: Agassi is, with Rod Laver, Don Budge, Fred Perry, Roy Emerson, and Roger Federer, one of only six men to have achieved a Career Grand Slam, one of only three (with Laver and Federer) since the beginning of the Open Era, and the only male player to have achieved a Career Golden Slam