Barca issued a communique shortly after the final whistle confirming Alba had "problems in his right hamstring," adding that he would undergo tests on Monday to discover the full extent of the injury.
Farias will be without key names from Bolivar and Jorge Wilstermann after officials from both clubs asked that their players be released from national duty to concentrate on the Copa Libertadores, South America's top club competition.
"We know that Shanghai boasts a quick pace and three-pointer shooting ability. We had a great defense and restrained the opponents' character today," said Xinjiang coach Gao Fengjuan.
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"The tiebreak was very tense. The tiebreak was where all the money was," said Tsitsipas on court. "I am glad that I played good tennis and I didn't panic. I stayed concentrated, stayed low-key and tried to take it point by point."
Tuchel's side have been drawn with Manchester United, Istanbul Basaksehir and RB Leipzig in this season's UEFA Champions League group stage.
Buckling up their defense and increasing ball movement in transition, Sichuan began to gain ground in the second quarter. After Shao Ting's three-point play with 5:57 left, they turned the game around at 30-28 before going into halftime up 41-39.
The 33-year-old had scored 45 goals in 68 games and won two A-league championships since he joined the Sky Blues in August 2018.
The race, attracting around 1,500 runners from China, Japan, Mexico and other countries and regions, features 65km, 25km and 5km races.
Earlier in the women's race, the world record holder Brigid Kosgei defended her title in 2:18:58.
Elsewhere, Sassuolo registered another comprehensive victory as it beat Crotone 4-1 with Francesco Caputo's brace.
"It's not easy for us to return to court. I always want to say thanks to all medical staff across the country for giving us a safe environment to play. We appreciate it a lot," Wu said.