Ostapenko falls in Stanford

Sixth seed Jelena Ostapenko failed to clear the first hurdle at the Bank of the West Classic on Tuesday as she was beaten 4-6, 4-6 by American wildcard Catherine Bellis. 

Having downed Ostapenko in her campaign opener, Bellis will either face Sachia Vickery or Elitsa Kostova in the second round.

Ostapenko was not the only seeded casualty on Tuesday as eighth seed Varvara Lepchenko was defeated 6-2, 3-6, 6-7 (7) by Alison Riske.

Meanwhile, Magda Linette, Julia Boserup and Urszula Radwanska made it through to the second round after taking down Kristyna Pliskova, Naomi Osaka and Kateryna Bondarenko respectively.