Mena struck in the 41st and 51st minutes at Estadio Victoria as the visitors secured their fifth win from eight matches.
Finishers got their running medal in their hand, not on their neck.
Djokovic immediately rushed over to check if she was okay and placed his hand on her back as the judge struggled for air. After a few minutes she was able to get up and walked off the court.
In Paris, France came from behind to repeat their triumph in the final of the 2018 World Cup, beating Croatia 4-2, despite the absence of striker Kylian Mbappe.
PP Sports, owned by Chinese retail giant Suning Group, had signed a three-year deal with Premier League in 2016. The broadcaster has reportedly withheld a payment of 160 million pounds rights fees which were due to happen in March.
The under-23 striker Zhang proved his worth again in the 44th minute, as he tapped Jonathan Viera Ramos' cross home to add another goal for Guoan.
Elsewhere, fifth seed Alexander Zverev of Germany beat Frenchman Adrian Mannarino 6-7 (4), 6-4, 6-2, 6-2 to advance, while fourth seed Stefanos Tsitsipas of Greece was upset by Croatia's Borna Coric in a five-set thriller.
Nearly all students have returned to schools this September in China. As the COVID-19 epidemic eases and the new semester begins, girls in northwest China can return to their beloved football pitch again.
Elsewhere, Belarus' fifth seed Aryna Sabalenka lost to compatriot Victoria Azarenka 6-1, 6-3, ninth seed Johanna Konta of Britain was stunned by Romania's Sorana Cirstea 2-6, 7-6 (5), 6-4 and tenth seed Garbine Muguruza from Spain lost to Bulgaria's Tsvetana Pironkova 7-5, 6-3.
"This team have given me so much, my first chance, my first podium and my first win. It is just an amazing day."
TEHRAN, Sept. 8 (Xinhua) -- Iran national women's volleyball team captain Maedeh Borhani said in a recent FIVB interview that she hopes her team can get a medal at the Asian Championship.