Kiki Bertens

Bertens, 27, beat four former Grand Slam champions on her way to the Madrid Open title on clay in May. The victory vaulted her to No. 4 in the world, and she will go into Wimbledon aiming to become the first woman from the Netherlands to win a Grand Slam singles title. A powerful 6-footer, Bertens has a cannon of a serve, which she follows up with one of the heaviest forehands on tour. In her early years on tour, she was known as a talented shotmaker who struggled to close out matches and lacked the competitive fire needed to beat the top players. She contemplated retirement 18 months ago, but decided to rededicate herself. Under the guidance of her coach, Raemon Sluiter, Bertens has become a relentless attacker.