Stefanie Graf dominated the tennis world in 1988 ➡️She won all four grand slams that year in women's singles and even walked away with a gold medal at the Seoul Olympics. 🏆🏆🏆🥇🏆 Graf's first @USOpen title sealed the deal for her Golden Grand Slam. 🎉👏 She's the only player male or female to achieve that feat. #Tennis #HistoryPreserved #WTA #SteffiGraf