Earlier, Schwartzman knocked out third seed Dominic Thiem in a thrilling marathon battle which lasted over five hours, winning 7-6 (7-1), 5-7, 6-7 (8-6), 7-6 (7-5), 6-2.
Sydney FC's head coach Steve Corica said given Le Fondre's great contribution to the club's recent success, it would be wrong to stand in his way.
On the Shandong side, Yang Hengyu contributed 16 points, while Qiao Yanzi added 12.
The injury means that Alba will be forced to pull out of the Spanish national team squad for the forthcoming friendly game in Portugal and the UEFA Nations League ties against Switzerland and Ukraine.
Wolves also claimed three points thanks to Pedro Neto's 56th minute goal at home against a Fulham side still looking for its first point since returning to the top-flight.
After national team center Li Yueru's departure, Dilana was made to shoulder more responsibilities in the paint for Dongguan.
FC Barcelona have had a promising start to the campaign under new coach Ronald Koeman, scoring seven goals in their opening two matches, with the midfield pairing of Sergio Busquets and Frenkie de Jong giving a solid base for the attacking quarter of Ansu Fati, Leo Messi, Philippe Coutinho and Antoine Griezmann.
After four games of the season, Athletic Club Bilbao coach Gaizka Garitano has emerged as the early favorite in the 'sack race' after his side lost 1-0 at home to nine-man Cadiz, before being beaten by the same score away to Alaves on Sunday.
The 2019 ATP Finals champion will face Russia's Andrey Rublev for a semifinals place in the next round. The 22-year-old Rublev recovered from a one set down and trailed by 5-2 in the second to knock out Marton Fucsovics 6-7 (4), 7-5, 6-4, 7-6 (3) in the last men's round of 16 clash.
"We contained their three-pointer shooting quite well," Dongguan coach Lin Yaosen reflected.
Barcelona talisman Lionel Messi has been unfairly maligned by some for a perceived inability to reproduce his club form for Argentina. But the 33-year-old's record for his country stands tall against the greats of any era. Messi is his country's all-time leading scorer with 70 goals and 45 assists from 138 appearances.