Thiem was runner-up at the Australian Open earlier this year and also lost in the French Open finals in 2018 and 2019.
Yu, 25, has agreed a one-year contract with Xinjiang, with the option of a one-year extension.
The 2020 season ended disappointingly for Pep Guardiola's Manchester City, who never looked like catching Liverpool in the league and then, after beating Real Madrid, saw their European hopes destroyed by Olympique Lyon.
Liu Cheng/Li Yinhui earned the opening point for Xiamen in the mixed doubles, before Olympic champion Chen Long suffered a straight-set loss to young shuttler Ren Pengbo 11-7, 11-5, 11-4.
PARIS, Sept. 10 (Xinhua) -- Defending champions Paris Saint-Germain opened their Ligue 1 title defence with a shock 1-0 defeat at newly-promoted Lens.
LONDON, Sept. 13 (Xinhua) -- World No. 1 Judd Trump started the new snooker season with two wins and one draw on Sunday, progressing to the second stage of the Championship League from Group One.
The 51-year-old started his coaching career in his hometown of Siena at the age of 26. He has traveled all over Italy, Turkey and Israel. So far, he has led three teams into the Euroleague, which represents the highest level of European basketball.
Fernandinho created the third goal of Chongqing six minutes later, breaking the rivals solid defense as a left-winger and helping Mierzejewski fire in close range through an accurate low pass.
The Cameroonian added another six minutes later on cross by Harold Preciado. Referee Fu Ming awarded the goal after reviewing VAR.
"We (the Chinese women's volleyball team) hope that the Olympic Games will be held successfully because we have been fighting for this for four years," said the 25-year-old.
The 35-year-old did not travel with his teammates to the Andean country on Monday after failing to recover from a shoulder injury, Flamengo said on Twitter.