Top seed Djokovic labored for two hours to win 6-3, 4-6, 6-3 against German qualifier Dominik Koepfer.
Moreno's goal was exceptional as he controlled the ball in the Eibar area before turning, leaving his marker and scoring with a shot to the far post. Alcacer kept his cool after beating the offside trap.
"Five, six, seven, eight! And jumping jacks," Cao Tingting, a 16-year-old girl shouted at the front of the class.
Kike Gonzalez put Eibar ahead in the 50th minute, but two goals in an eight-minute spell on 62 and 70 minutes from Gerard Moreno and Paco Alcacer gave Unai Emery his first triumph at the club and also highlighted the attacking talent at his disposal.
"I'm very lucky to get through, I didn't play very well," Gilbert was quoted by the tournament's website.
Feng Bin of Shandong competes during the Women's Discus Throw Final on Day 4 of the 2020 Chinese National Athletics Championships in Shaoxing, east China's Zhejiang Province, Sept. 18, 2020. (Xinhua/Wang Lili)
The Spain international's deal should also be confirmed on Friday, although he won't take part in Sunday's important league fixture which sees Liverpool travel to face big-spending Chelsea. Enditem
The club again has put its future in the hands of brilliant but inexperienced up-and-coming players.
His son, Papa Massata Diack, a former IAAF marketing consultant, was sentenced to five years in prison and fined one million euros. The younger Diack, who is wanted on an Interpol red notice, remains in Senegal.
In the women's tournament, Simona Halep advanced to the semifinals after Kazakhstan's Yulia Putintseva retired with the scores at 6-2, 2-0. She is to meet ninth-seeded Garbine Muguruza of Spain, who beat former number one Victoria Arazenka.
"This is our last friendly and it is a good test because we are playing a La Liga side and it will allow us to see how we are physically and also in terms of our football and quality," he said in a press conference.