Bianca Andreescu 'on a roll' after 14th win on the spin

Bianca Andreescu said that she has "forgotten how it feels to lose" after the US Open champion reeled off her 14th victory in a row on Monday in Beijing.

The 19-year-old Canadian beat Aliaksandra Sasnovich of Belarus 6-2, 2-6, 6-1 in the China Open first round despite a second-set wobble.

But Simona Halep became the first major casualty in the Chinese capital, beaten by Russia's Ekaterina Alexandrova, with the Romanian appearing to struggle with a back injury.

Andreescu's run of victories has brought her the US Open and her home Canadian Open in recent weeks, propelling her into the limelight.

"I wanted to just keep the momentum going," said the teenager, after her first match since stunning Serena Williams in the final at Flushing Meadows in early September.

"I'm on a roll right now, hopefully I can just keep it up because I think it gives me a lot of confidence," added the world number six, who has qualified for the season-ending WTA Finals.

"I don't want to sound cocky or anything,