Other clubs are expected to follow.
Elsewhere, sixth seed Matteo Berrettini of Italy, tenth seed Andrey Rublev of Russia and Australia's Alex De Minaur all won their third round matches. Enditem
Hamilton had controlled the early stages of the race from his pole position, leading away from the McLaren of Sainz and Lando Norris, Racing Point's Sergio Perez, the Renault of Daniel Ricciardo, and Hamilton's Mercedes teammate Valtteri Bottas, who dropped from second to sixth after a poor start.
After a discussion of around 10 minutes between tournament referees and officials, Djokovic was disqualified from the match.
Since the start of the summer transfer window, the London club have added the German duo Werner and Havertz, Morocco's Hakim Ziyech, England's Ben Chilwell and Brazilian veteran Thiago Silva to their squad. Enditem
Top-ranked Belgium secured a 2-0 win in Denmark, while Raheem Sterling converted a penalty in second-half stoppage time to give England a 1-0 victory in Iceland. Enditem
Wuhan's 23-year-old bench goalkeeper Wang Zhifeng kept a clean sheet in the second half, and might become a start in the future together with Dong, who joined Wuhan from Hebei China Fortune.
Saba headed home in the 11th minute after receiving a right cross from Brazilian midfielder Renatinho, but Henan scored the equalizer in the 34th minute when Henrique Dourado converted a penalty won by Feng Boxuan.
"We are already working hard to achieve our goal of going to Qatar. It's a challenge that affects all of Ecuador. We know it's not going to be easy and we're focused on giving everything we've got."
Steven Bergwijn scored the game's only goal in the 61st minute, firing in from close range. After breaking the deadlock, Dwight Lodeweges's team controlled the game at the Johan Cruyff Arena in Amsterdam, restricting Poland to just one shot on target.
European champion Laura Muir was unstoppable in the women's 1,500m, continuing her momentum following a big win in Oslo two weeks ago. The Briton clocked 3:58.24, followed by Sofia Ennaoui of Poland and Romania's Claudia Bobocea.