Halep began effectively within the second set with an early break earlier than falling away in opposition to a extra constant Svitolina. "I heard my knee crack".
Svitolina, the only player in this year's field who has not won a title this season, was unbeaten in the tournament last year.
"I stepped weirdly on a return", Andreescu said. "Of course, I feel sorry for her..."
"Putting pressure afterwards on it really bothered me".
This second straight-sets victory means that Svitolina has now qualified for the championship weekend here at the Shenzhen Bay Sports Center.
The US Open champion fell to a third consecutive defeat, following a sequence of 17 straight wins, as she quit the Purple Group clash with Pliskova after losing the first set 6-3.
New Location For US-China Trade Deal Signing To Be "Announced"
But a shifting deadline could also reduce pressure on both sides to cut an initial deal and move on to more comprehensive talks. But wrapping up even that limited work by the November 16-17 summit in Chile had always been seen as a challenge.
During a medical timeout, Andreescu had her knee taped and she played through the first set, even challenging Pliskova's serve with three break-point opportunities in the fifth game.
"It was an extremely physical match", Svitolina said. But I fought with the pain as much as I could. Despite Halep netted unforced off a backhand volley, she managed to hold and pull level. "I know I looked up to her a lot, so being able to play her was really fun".
"Today was a challenge because she's nearly 10 years younger than me", Halep said.
Starting her journey in Shenzhen against the Canadian prodigy Bianca Andreescu, Simona Halep soon found herself in an epic battle of the plays.
Despite the disappointment of an injury-plagued finish, Andreescu's breakout 2019 season - highlighted by a win over Serena Williams in the U.S. Open final - was overwhelmingly positive.
Fancy how she started, a sloppy Halep misfired in the 12th sport as she handed Svitolina the first space with a slew of unforced errors.
"It's been wonderful. I really can't complain", she said. The title in Shenzhen would not only give Svitolina, who dates men's pro Gael Monfils, a huge paycheck but it would extend her run of winning at least one title in a season to seven. "Even though I had some chances in the second set, too, it was a big part of the match, the first set".