The club's new trio faces its first game next weekend when they travel to Champions League participant RB Leipzig.
Pedro latched onto Giorgian De Arrascaeta's cross to fire in a shot from close-range, just two minutes after Patrick de Paula had put his team ahead with a thumping 20-yard effort.
For the first time this season, Thomas Tuchel was able to field his Fantastic Four - Neymar, Mbappe, Icardi and Angel Di Maria - at the front and it was rewarded with a comfortable victory.
Tourists can participate in a photo contest, enjoy traditional singing and dancing programs as well as discover Mongolian cuisine during the festival.
It seemed Liaoning would dominate the game again as they grabbed seven points in a row in the opening stage of the second set. However, Zhejiang then strengthened their blocking and gradually narrowed Liaoning's lead.
Hoffenheim then grabbed the lead out of the blue with 16 minutes gone when Ermin Bicakcic headed home Dennis Geiger's corner kick to stun Hansi Flick's men.
"It's our 10th straight year at the Sport Show," said Airgoal's Liang Jiahua. "We are bringing some new products here and the sales are satisfactory."
Yu Jingyao from Beijing touched the finishing line first in the women's 100m breaststroke, with Zhang Xinyu from Henan and Tianjin's Zhang Muyan rounding out the top three.
Reports speak of growing unrest among players and coaching staff regarding their claim to sign new faces to help a tired team recover and shape an era of success.
Saturday's last game saw Danny Ings' fifth-minute goal against one of his former clubs give Southampton a 1-0 win away to Burnley for their first win of the season. Enditem
The result leaves Leeds with six points from three games, while Sheffield are still looking for their first point of the season.