On This Day: Steffi Graf completes the "Golden Slam"
1988: Steffi Graf Wins the Golden Slam
WTA on Instagram: “September 10, 1988! Steffi Graf wins the #USOpen to complete the Calendar Grand Slam!” | Steffi graf, Beautiful athletes, Softball training
Steffi Graf during the 1988 U.S. Open Tennis Tournament in Flushing,... News Photo - Getty Images
DW Sports on Twitter: "🥇 1988 Steffi Graf 🥇 1992 Michael Stich, Boris Becker 🥇 2021 Alexander Zverev German tennis history 🇩🇪 #Tokyo2020 https://t.co/dFRBIEa0PS" / Twitter
Page 3 - 5 Steffi Graf records that will likely never be broken
Tennis' only Golden Slam winner: Steffi Graf's dream run in 1988
Steffi's Golden Slam at 25: Part One (Introduction) | A man and his racquet
The three greatest seasons by a player in tennis history - Page 4
The greatest: Steffi Graf – power and perfect timing personified | Tennis | The Guardian
Watch: On the anniversary of Steffi Graf's Grand Slam, a look back at her golden 1988
Steffi Graf, Amelia Island, 1988 by stmurphy on DeviantArt
The day Steffi Graf won the "Golden Grand Slam" - Tennis Majors