The final chance of the match fell to Madrid's Tony Kroos but the German's effort went wide.
Llorente can play either as a defensive midfielder or in central defense and has played six times for the Spanish national team.
Chongqing nearly scored their third before the break when Fernandinho got an exquisite pass from Adrian, but his shot hit the post.
The only down side for the capital-based team was that Renato Augusto limped off with injury as the Brazilian was suspected of suffering a muscular problem.
It has been such a complicated summer for FC Barcelona that it is almost hard to know where to begin. Ronald Koeman takes over a side that is now without Ivan Rakitic, Arturo Vidal and Luis Suarez, who joined Atletico Madrid on Wednesday night. Lionel Messi will clearly be the focus of attention after his summer request to leave the club, but Antoine Griezmann has to step up after Suarez's departure and Frenkie de Jong has to do the same in a side now without Vidal and Rakitic.
Newly-crowned US Open champion Dominic Thiem, who has lost back-to-back Roland Garros finals to Nadal, has been drawn into the same half as the Spaniard and faces non-seeded former world No. 3 Marin Cilic.
Hertha was able to score a consolation goal in the 76th minute with the assistance of Martin Hinteregger, who cleared a square pass from Torunarigha into the wrong goal.
Guangzhou regrouped after the interval and levelled in the 71st minute when Wu Chao slotted the ball into the net after collecting a pass from his teammate in the box.
The second, decisive match will take place on September 30 in Salzburg, with the winner on aggregate to qualify for the Champions League's group stage. Enditem
In other action, Hebei and Tianjin lost several chances to take a lead in the first half, when Hebei forwards Buya Turay and Markao failed to score in succession in the eighth minute, and Tianjin's 21-year-old midfielder Liu Ruofan missed three times in a row.
But these are just one-quarter of over 200 simplification measures to be talked about and more challenges are lying ahead of the IOC and Olympics organizers.