The former assistant to Pep Guardiola has overseen five wins, two draws and four losses, the same number of defeats suffered by the team in the entire 2019 Brazilian Serie A season.
Granada were clearly the better outfit and led by three goals on the half hour when Herrera produced a sharp finish following good control and a cross from Kenedy, who was able to push forward comfortably, and netted his second of the game in the first minute of the second half. The Venezuelan latched onto a long ball from the back and clipped his shot over the advancing keeper.
Raul Jimenez put the away side in front with a half-volley from Castelo Podence's left-wing cross, before Romain Saiss's header from Neto's corner completed the scoring.
Liverpool regained the lead in the 20th minute as Virgil Van Dijk took advantage of some slack marking to smash home a header from Andy Robertson's corner.
Fourth-seeded Matteo Berrettini outlasted Stefano Travaglia 7-6 (5), 7-6 (1) in an all-Italian contest to reach the last eight.
"I feel unhappy even though I won. The result is not good, my friend Ge could have done better than me," said Kong.
Frank Lampard's expensively assembled Chelsea side also began the new season with three points, winning 3-1 away at Brighton & Hove Albion in the Monday evening kick-off.
Villarreal coach Unai Emery will be looking for more cohesion in attack and his side will be favorites against Eibar, whose first game of the season was a dull 0-0 draw with Celta Vigo.
After German international Sebastian Rudy and striker Mark Uth returned, the Royal Blues signed Goncalo Paciencia (26) from Frankfurt and Vedad Ibisevic (36) from Hertha, both on loan deals. Competition within the squad is increasing the quality of our team, Raman said. Enditem
Capped seven times for Brazil's national team, Neves has also had spells with Fluminense, Flamengo and Germany's Hamburg over a career spanning more than 15 years.
"First we have to sell before Depay comes," he told FOX Sports, before indicating that he didn't expect any new signings before Barca begin their campaign at home to Villarreal on September 27.