The always-volatile, revolving list of up-and-coming tennis stars often changes after each Grand Slam. A number of young players leapt on to the list after impressive French Open performances.
But how many of them have a game that translates well to grass-court play?
The quick and slick grass courts favor the big server and swift movers. If they can serve and volley, even better.
So who among the rising stars has the type of game to succeed at the All England Club?
Simona Halep, 23, is hardly a rising star. When you reach No. 3 and nearly win a Grand Slam in your first appearance in a Slam final, you are beyond up-and-coming. You have arrived.
Likewise, No. 10 Kei Nishikori, 24, is no longer on the rise. Perhaps not a bona-fide superstar, Nishikori has been on the tour too long to be considered a member of generation next. Heck, he was born just two years after Novak Djokovic.
Players on this list are 23 and younger and have had some success. Most importantly, they have the weapons in their arsenal to make a deep run at Wimbledon.