At the moment Sevastova is ranked 11th in the world, while Bigdan is ranked 127th.
Sevastova has earned 30 WTA ranking points for advancing to the second round of the Bucharest tournament, where she will take on Romania's Patricia Tig, who is currently unranked.
Sevastova triumphed in the Bucharest tournament last year.
Takes it in the breaker!
— WTA (@WTA) July 16, 2019
Anastasija Sevastova secures the second set against Bogdan 7-6(4) - we're going three!#BRDBucharestOpen pic.twitter.com/9nbKnZQvr3