Pliskova wasted eight set points in the opener but recovered quickly in the following two sets, serving out the contest on Court Philippe-Chatrier after two hours and 15 minutes.
However, West Brom's defense is also porous and after Mason Mount gave Chelsea a lifeline in the 55th minute, Callum Hudson-Odoi netted their second with 20 minutes left to play to set the stage for Abraham's late equalizer.
Olympic medalist Wang Shun reached the finishing line first in the men's 400m individual medley in 4:11.89.
World champion Yan Zibei took the crown in the men's 100m breaststroke in 59.07 seconds, with Wang Lizhuo from Heilongjiang and Yu Zongda from Hubei rounding out the top three.
In other fixtures on Wednesday, River Plate won 2-1 at home to Sao Paulo, Palmeiras routed Bolivar 5-0 in Sao Paulo, Independiente Medellin won 2-0 in Caracas, Racing beat Nacional 2-1 in Montevideo, Estudiantes drew 2-2 at Alianza Lima and Barcelona SC won 2-0 at Junior Barranquilla. Enditem
Shanghai Shenhua wrapped up with 21 points on the fourth place in the Dalian group, while Henan languished at the bottom with six points.
"[I'm] struggling to walk so that's a tell-tale sign that I should try to recover," she added.
Hamilton's earlier stop, coupled with his time penalties, meant the Briton emerged from the pitlane down in 11th place. Though he was able to carve his way through the field to finish third, Hamilton was clearly irked at his punishment and voiced his displeasure over the pits-to-car radio.
The clubs are hoping for similar rules set up for the German national team ahead of internationals in October, including a game in Kiev.
"I am really looking forward to the task and I know what responsibility I have towards the club and its fans. But I am convinced that I can help Schalke and lead the club to where it belongs: namely further up the standings," Baum said during his official presentation.
Marek Hamsik (R) of Dalian Pro passes the ball during the 14th round match between Guangzhou Evergrande Taobao and Dalian Pro at the postponed 2020 season Chinese Football Association Super League (CSL) Dalian Division in Dalian, northeast China's Liaoning Province, Sept. 27, 2020. (Xinhua/Pan Yulong)