Radwanska has won all 3 of their previous matches. They last met in January last year in Shenzhen, China. She won in straight sets on a hard court. All their matches ended in 2 sets including at this tournament in 2012.
Better hard court results for Zhang this year. Her ROI is also higher. Z=hang won the title in Guangzhou 2 weeks ago beating Krunic in the final. Last week She met Pliskova in the second round in Wuhan and took her to 3 sets. She had a straight sets win over Putintseva in the first round this week.
Radwanska struggled a little with her serve in the opening set in the last round. She was broken in the first game but took 2 breaks of serve against Witthoeft and seemed to be cruising. Witthoeft got back on serve and when Radwanska looked like she could be in danger of losing the set a hold to 0 and a break to 0 gave her the set.
I think we see a few breaks of serve in this one. It looks a big price on Radwanska though she has not been as consistent this year as she has in the past. Three sets look likely. Lay the set 1 winner. I give a slight edge to Radwanska.