4. Agnieszka Radwanska
Ninja sightings were common back in the day. Prior to her retirement in 2018, Agnieszka Radwanska, or 'the Ninja' as she had been dubbed for her artillery of out-of-the-box tennis strokes, had established her monopoly on the shot of the year and Fan Favorite player prizes at the year-end WTA awards. And rightly so too.
Radwanska was an entertainer on court if there ever was one. She was not known for her groundstrokes or serve, which were ordinary at best, but instead it was her uncanny knack of winning points, and hell, even matches based off of her true instinctive play, that caught the eye.
It helped that there was no shot in the book that Polish stalwart could not make. If you don't believe me, go back to the WTA archives and check out some of the shot of year winners to have come off of her racket.
Do not, however, mistake that for Radwanska not being a serious contender. In fact, if there is anything the former World No. 2 was known for more than her unconventional style of play, it was her resolve as a competitor.
It was this determination that took her to the career-high ranking of No. 2 (where she stayed for long), a Wimbledon final (where she lost to Serena Williams), a WTA Finals title and the status of a true champion.