Andy Roddick, Michael Chang and other one-Slam wonders Emma Raducanu won't want to emulate

Chang surprised everyone by winning the French Open as a 17-year-old in 1989. In fact, he remains the youngest man ever to win a major.

1996 Wimbledon Men's QF:

(17)Richard Krajicek def. (1)Pete Sampras 7-5, 7-6(3), 6-4

Sampras, the 3-time defending champion, saw his 25-match win streak at Wimbledon come to an end. He would win the tournament the next 4 years.

Krajicek won the title, his only major trophy. pic.twitter.com/Rzem8mBgrP

It's quite hard not to feel a degree of sympathy for Conchita Martinez, as she was a richly talented player in an era of legends on the WTA Tour.

Thankfully, before his many injuries decimated his game, Del Potro showed what he was capable of by beating Roger Federer to win the US Open as a 21-year-old.

It was probably the last one he was expected to win, but he won it in some style, beating Carlos Moya, Andy Roddick, Greg Rusedski, Marat Safin, Tim Henman and Pat Rafter on the way. It was, surprisingly, the only Slam he ever won.