Valter, 22, broke free during the final few kilometers and the peloton was unable to catch him.
Strikers Mehdi Ghaedi and Arsalan Motahari pulled two back for Esteghlal FC in the second half.
Nationwide demonstrations against what activists have described as police brutality and systemic racial inequality have broken out over the past few months, particularly after police killed George Floyd and shot Jacob Blake. Enditem
A source told Xinhua, they have paid 50 percents of the negotiated fees at the initial stage of the three-year circle.
Fourth seed Naomi Osaka of Japan booked her place in the third round with a comfortable 6-1, 6-2 win over Italy's Camila Giorgi.
The Bundesliga is also going to intensify its efforts to support football development in China.
With this result, Dalian are sixth in Group A with nine points, while Henan with six points remained in last place. Enditem
The reasons seem apparent in Klein's view.
He said he was looking forward to battling for his place alongside players such as Paul Pogba, Bruno Fernandes, Nemanja Matic and Fred.
In women's singles, top seed Pliskova of the Czech Republic was upset by France's Caroline Garcia in the second round.
Luis Enrique's team left it late and flabbergasted the hosts when Moreno flicked on a cross before Gaya poked home with a turn shot from very close range in the closing seconds of injury-time.