Both Suning and Shenzhen showcased aggressiveness at the beginning of the first half, with Teixeira Santos's header parried by Morteza Pouraliganji in the third minute. Shenzhen's Gao Lin shot to strike back three minutes later but failed to score.
The company has been focusing on soccer-related equipment, and it has served more than 40,000 schools all around the world.
The top four of each group will play the second phase between October 16-December 12 in Suzhou.
More setbacks could well affect the entire season and increase the pressure on coach Lucien Favre at an early stage.
To survive its deep crisis, the 1997 UEFA-Cup winner needs to substantially realign its entire structure and create a serious plan to solve the team's problems, said former Schalke coach Ralf Rangnick.
Cedric Bakambu finished second with a stunning strike in the 27th minute after a goal was disallowed for offside in the opening time.
Yao was the title favorite but the 30-year-old failed to clear the bar at 5.30m, although he passed the height of 5.15m in his first attempt.
Schmiedlova, who dispatched another Grand Slam winner Venus Williams in her first round match, arrived at Paris after a 13-match losing streak in Grand Slam main draws dating back over five years, but reached the last 32 in this year's re-scheduled clay major, equalling her best run at a major from the 2015 US Open and 2014 Roland Garros.
Rookie Zhang Ke, 19, took first place in the final of the women's 1,500m freestyle in 16:13.26. Wang Jianjiahe, who broke the Asian record of the event in the preliminary heat, also missed the final due to physical tests results.
Both teams created and missed chances in the first half and made life a little easier in the season, with no one breaking the deadlock.
"I may have played too many today. I agree. Maybe I exceeded what I should have played. But I think it worked well in the moments when I needed to get the point I did."