"I just want to give my best, enjoy the match, and try to fight". "I think it's a good problem to have".
Later on Saturday, Halep will be back in action against Svitolina, while Denmark's Wozniacki, the sixth seed, takes on American Sloane Stephens for a place in the final.
When the action resumed, Svitolina, the world number five from Ukraine, regrouped and forced a decider after claiming the second set in 44 minutes during which both women struggled to hold serve.
She jumped into a 3-1 lead in the second set before allowing Stephens to rally back.
"In Paris it was very hard to have that, but I think it's also the experience", Svitolina said.
Wozniacki, the 2010 champion, needed 80 minutes to eliminate Stephens and reach her sixth final of 2017.
In the men's event, Switzerland's Roger Federer extended his winning streak to 15 matches this season as he comfortably beat Spain's Roberto Bautista Agut at the Uniprix Stadium in Montreal.
"I think the biggest mistake was in the first set - so because of that, I think I lost", the 25-year-old Pliskova said. "She's strong there and she played her game".
After being blown out in the semifinals of the Rogers Cup at the hands of Elina Svitolina, defending champion Simona Halep was at a loss for words. "But, you know, maybe that's also the key why it's been going so well, because I just walked in and I was more relaxed about the whole thing". It's just tough to play her in these conditions. So it's really tough to analyze the game.