"We executed the coach's tactics well," she explained.
Fujian cut the deficit to nine points in the third period, but their fightback was halted by Dong and Huang's combined efforts inside-out, and they could not truly threaten Zhejiang thereafter.
Clubs like Bayern had to accept a substantial loss in quality after the departures of Thiago Alcantara (Liverpool), Philippe Coutinho (back to Barcelona), and Ivan Perisic (Inter).
Tsitsipas was edged by Stan Wawrinka in a marathon over-fiver-hour battle at this stage last year, but this time he took chances with his 24 winners against the No.18 seed.
Shanxi gradually gained the upper hand in the second quarter before going eight points up at the break.
The 33-year-old will play 17th seed Pablo Carreno Busta the round of eight. The Spaniard dispatched German qualifier Daniel Altmaier 6-2, 7-5, 6-2.
Koeman's team looks faster, fitter and hungrier, with Philippe Coutinho getting involved and Leo Messi smiling again. There is a question mark over the lack of central defenders and with Clement Lenglet suspended against Sevilla on Sunday that looks to be their main weakness.
For Zhu Fangyi and his friends, returning to swimming in public waters felt sweeter than ever in this pandemic-disrupted year.
Four-time winner Kipchoge from Kenya was expected to clinch the victory comfortably as his archrival Kenenisa Bekele announced his withdrawal from the event due to a calf injury on Friday.
On Friday Heerenveen drew 1-1 at FC Utrecht and Vitesse beat Heracles Almelo 3-0 on Saturday. Feyenoord now leads the Eredivisie with 10 points after four matches. PSV and Heerenveen also have 10 points, but Feyenoord's goal difference is better. Vitesse and Ajax are fourth and fifth with nine points. Enditem
Mainz failed to put up any resistance while Union relentlessly tripled their lead after Marvin Friedrich headed home Christopher Trimmel's free-kick in the 63rd minute for 3-0.