Steffi Graf's almost-perfect 1988 French Open Final was pretty much impossible - SBNation.com
Steffi Graf, Amelia Island, 1988 by stmurphy on DeviantArt
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 (GER) competing at the 1988 US Open in the year she won the Golden Slam Stock Photo - Alamy
October 1, 1988: Steffi Graf wins Olympic gold for an amazing achievement
Steffi's Golden Slam at 25: Part One (Introduction) | A man and his racquet
Steffi Graf - 1988. The Grand Slam year - West Germany
The day Steffi Graf won the "Golden Grand Slam" - Tennis Majors
Tennis' only Golden Slam winner: Steffi Graf's dream run in 1988
The greatest: Steffi Graf – power and perfect timing personified | Tennis | The Guardian