Halep headed to Rogers Cup semi against Svitolina

Halep headed to Rogers Cup semi against Svitolina

Wozniacki was 5-1 down in the first set and 4-2 down in the third, but recovered on both occasions to seal her place in the next round. The Dane has been the tour's most winningest player, amassing 46 wins against just 15 losses, but in each of her five previous finals she has fallen.

The former world number jumped into a 3-1 lead in the second set before allowing Stephens to rally back. But Wozniacki struck again a few games later, and served out the match after a brief rain delay at 5-3.

Defending champion Simona Halep takes on Ukraine's Elena Svitolina in the second semi-final later on Saturday.

"Yesterday was really tough, waiting like six or seven hours here on site so I was a little bit exhausted", Halep said.

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Wozniacki has yet to win a title in 2017, but will once again have the chance to change that after building on her epic quarter-final win over world number one Karolina Pliskova.

After beating Spain's Rafael Nadal yesterday, the 18-year-old wild card entry overcame Frenchman Adrian Mannarino 2-6, 6-3, 6-4.

Halep said she is confident her legs will hold up when she faces Svitolina later in the day for a spot in the final. "I just want to give my best, enjoy the match, and try to fight".