The only baseball team to ever come back from being down 3-0 in a playoff series is the 2004 Boston Red Sox, who went on to win the World Series. Gymnast Simone Biles owns more world medals than any male or female American gymnast in history with 30. At the first modern Olympic games, held in Athens, Greece in 1896, winners were actually awarded silver medals. Since 2004, three players (Roger Federer, Rafael Nadal, and Novak Djokovic) have won 55 out of 64 possible Grand Slam titles. The youngest male tennis player ever to win a Grand Slam event, American Michael Chang at one point hit an underhanded serve to help win the 1989 French Open. Swimmer Michael Phelps owns the records for most Olympic gold medals, most Olympic medals in individual events, and most Olympic gold medals in individual events.