4. Daria Gavrilova (Age: 22 years, Rank: 45)
With oodles of spunk and variety in her game, the 22-year-old Daria Gavrilova has always been singled out as one who can climb the higher echelons of the sport. She validated that last year during the clay season by reaching the semi-finals of Rome and this year, she backed it up with a run to the pre-quarter-finals of the Australian Open.
However, the young Australian found the extra attention following that performance tough to handle. After a few weeks in the wilderness, interestingly it is the red dirt that has sparked off her much-awaited revival.
She stunned Petra Kvitova en route to reaching the Madrid quarter-finals and followed it up with an ouster of Simona Halep in Rome. If the ebullient and energetic Dasha gets going, she can be one tough nut to crack and Madison Keys needs to watch out!