![Steffi Graf wins the Grand Slam! - 1988 U.S. Open Tennis Champion - Sports Illustrated - September 19, 1988 - SI at Amazon's Sports Collectibles Store Steffi Graf wins the Grand Slam! - 1988 U.S. Open Tennis Champion - Sports Illustrated - September 19, 1988 - SI at Amazon's Sports Collectibles Store](https://m.media-amazon.com/images/I/71qfYQpNCQL.jpg)
Steffi Graf wins the Grand Slam! - 1988 U.S. Open Tennis Champion - Sports Illustrated - September 19, 1988 - SI at Amazon's Sports Collectibles Store
OTD in 1988 🗓 19 year old Steffi Graf completed the ONLY Golden Slam in the game of tennis- winning the 4 Grand Slam singles titles and… | Instagram
![The Moment Steffi Graf Completed the Calendar Slam Before Claiming the Golden Slam | 1988 US Open - YouTube The Moment Steffi Graf Completed the Calendar Slam Before Claiming the Golden Slam | 1988 US Open - YouTube](https://i.ytimg.com/vi/-PuvmTk3NBM/mqdefault.jpg)
The Moment Steffi Graf Completed the Calendar Slam Before Claiming the Golden Slam | 1988 US Open - YouTube
![Sports Illustrated Sept 19 1988 Steffi Graf at U.S. Open at Amazon's Entertainment Collectibles Store Sports Illustrated Sept 19 1988 Steffi Graf at U.S. Open at Amazon's Entertainment Collectibles Store](https://m.media-amazon.com/images/I/61GRorcduHL._AC_UF1000,1000_QL80_.jpg)
Sports Illustrated Sept 19 1988 Steffi Graf at U.S. Open at Amazon's Entertainment Collectibles Store
![US Open Tennis on X: "Australian Open 🏆 Roland Garros 🏆 Wimbledon 🏆 US Open 🏆 Olympics 🥇 On this day in 1988, Steffi Graf completed the Golden Slam. 🤩 https://t.co/S1fgLWR43l" / X US Open Tennis on X: "Australian Open 🏆 Roland Garros 🏆 Wimbledon 🏆 US Open 🏆 Olympics 🥇 On this day in 1988, Steffi Graf completed the Golden Slam. 🤩 https://t.co/S1fgLWR43l" / X](https://pbs.twimg.com/media/EjK93PoXsAQai3z.jpg:large)