The 24-year-old Yang took the lead in the first half of the race, yet 33-year-old Liu was in charge of the second half, walking at her own pace and clocking 1:27.48 to cross the finish line first. Yang and Qieyang Shijie ranked second and third respectively.
Competing under a six-round format, the 24-year-old landed at 8.36m in round two, which is the world leading mark of the year. Huang Changzhou ranked second with a personal best of 8.33m in his first attempt.
With Javi Martinez and Jerome Boateng as possible departure candidates, until the transfer window is closed on October 5, Flick demands replacements.
"I was the European champion and I was so confident but Lang Ping changed my attitude. She came to the dressing room and she said that no matter what I won in the past, I should just focus on the future. She helped me," added the former Vicenza Volley player.
The 37-year-old was among 26 players summoned by head coach Gerardo Martino for the Tricolor's first fixtures of the year, which will be preceded by a five day training camp starting Saturday.
The top four teams at the end of the qualifying tournament - in which teams play each other twice on a home-and-away basis - will automatically earn a World Cup berth. The fifth-ranked side will advance to a two-legged intercontinental playoff.
The "Herthaner" should have restored their three-goal advantage in the 71st minute, but Cordoba failed to beat Pavlenka in a one-on-one.
With the 2-0 lead, Hertha played conservatively after the interval, and Bremen failed to pose a threat to Hertha's well-positioned defense.
Willian opened the scoring from the penalty spot for the visitors and Gabriel Menino also found the target on the hour mark. Marcos Riquelme pulled a goal back for the hosts, who failed to capitalize on having three more shots on goal and over 200 more completed passes than their rivals.
Arsenal will host West Ham United in their second match of the 2020/21 Premier League on Saturday.
The country is undergoing an uncertain weather condition, which may render the fields to be unsafe.