Leylah Fernandez is on to the finals of the Citi Open after defeating the third-seeded Elena Rybakina of Kazakhstan 6-7 (2), 7-6 (3), 7-6 (3) in a three-hour and 12-minute marathon on Saturday afternoon.

From surviving three-hour duels to beating top seeds Jessica Pegula and Elena Rybakina, Leylah Fernandez’s DC run revealed a fighter ready for the hard-court summer.

Elena Rybakina has had a couple of concerning collapses this year and the latest came this past on Saturday, when the Kazakh blew a big lead and suffered a shock Washington semifinal loss.

The 22-year-old won 6-7 (2-7) 7-6 (7-3) 7-6 (7-3) in three hours and 16 minutes to set up a final against Anna Kalinskaya

Canada's Leylah Fernandez is onto the Mubadala Citi DC Open final after a grueling, three-plus-hour match against No. 3 seed Elena Rybakina of Kazakhstan.

Canada's Leylah Fernandez is going to come home with a great deal of momentum on her side. Fernandez continued a huge week with a dramatic 6-7 (2), 7-6 (3), 7-6 (3) win over No. 3 seed Elena Rybakina of Kazakhstan in the semifinals of the Citi Open on Saturday in Washington.