Cast your vote now for April's Breakthrough of the Month - Daria Kasatkina, Marketa Vondrousova, Anett Kontaveit, or Dayana Yastremska?
WTA Staff

April 2017 WTA Breakthrough of the Month Finalists:

Daria Kasatkina: Kasatkina's breakthrough came at the Volvo Car Open; a year after reaching the quarterfinals on her debut appearance, the Russian teenager rolled to her maiden WTA title in Charleston, knocking out Laura Siegemund and fellow teen Jelena Ostapenko in the final.

Marketa Vondrousova: The Czech teen rang in the inaugural Ladies Open Biel Bienne by becoming the lowest-ranked woman to win a WTA title since 2009, when an unranked Kim Clijsters won the US Open. Vondrousova used her big lefty power to upset top seed Barbora Strycova and Anett Kontaveit en route to the trophy.

Anett Kontaveit: Speaking of Kontaveit, the Estonian youngster took her first-ever WTA final appearance in Biel/Bienne and applied it to another impressive week at the Porsche Tennis Grand Prix, stunning reigning Roland Garros champion Garbiñe Muguruza to reach the quarterfinals in Stuttgart as a qualifier.

Dayana Yastremska: In a year that has seen 2016's junior talents break through en masse on the WTA level, Yastremska is the latest in a talented cohort that includes Anastasia Potapova and Amanda Anisimova. The 16-year-old won her first two WTA main draw matches to reach the quarterfinals at the TEB BNP Paribas Istanbul Cup.

2017 Winners:

January: CoCo Vandeweghe
February: Kristina Mladenovic
March: Risa Ozaki

How it works:

Finalists are selected by wtatennis.com
Winner is then determined by a fan vote on wtatennis.com

Dayana Yastremska, Daria Kasatkina, Anett Kontaveit, Marketa Vondrousova