Unai opened the scoring with a carefully placed shot following a swift break in the 40th minute and, although Kike Garcia equalized for Eibar three minutes into the second half, the midfielder popped up again to finish the best move of the game three minutes from time to deservedly send the points back to Bilbao.
Sevilla came back from a goal down to get their season underway with a 3-1 win away to Cadiz.
For the first time this season, Thomas Tuchel was able to field his Fantastic Four - Neymar, Mbappe, Icardi and Angel Di Maria - at the front and it was rewarded with a comfortable victory.
Luo's compatriots Zhao Xintong, Xiao Guodong and Zhou Yuelong all have progressed into the second stage earlier.
Roberto Soldado will probably replace Jorge Molina in the Granada starting 11 on Thursday, while the Darwin Machis will also probably start with Antonio Puertas perhaps dropping to the bench for the Chinese owned club.
Former international Chen Xiaojia powered Jiangsu's offense through consecutive baskets as Jiangsu went up 23-18 at the end of the first quarter.
"We faced a team that attacked with many players and it was a different match compared to the one against Sampdoria. We wanted to keep the line tight, put pressure on the central players and exploit the one-on-one in attack, but we weren't always able to find solutions, after all we were playing against a solid team and we knew we would have difficulties," said Pirlo.
Emerson scored an own goal in the 48th minute to make it 2-2 after goals from Aissa Mandi and William Carvalho had canceled out Fede Valverde's 14th minute opener for Real Madrid.
Olimpia must defeat Delfin at home and rely on other results going their way to have any chance of progressing to the knockout phase.
As required by the government, the maximum limit of attendees per day at this year's French Open has shrunk to only 1,000 in response to the resurgence of the COVID-19 pandemic in and around Paris. Enditem
There was last second drama as Manchester United got their first win of the season with a 3-2 victory away to Brighton on Saturday thanks to a penalty given after the final whistle.