"Signing for this special club was never in doubt," Aubameyang told the club's website. "I believe in Arsenal. We can achieve big things together. We have something exciting here and I believe the best is to come for Arsenal."
The 70th FIFA Congress convened remotely for the first time, as all of the 211 member associations joined via videoconference on Friday.
Leo Messi returned to action against Girona and will also face Elche, while Koeman said that new signing Miralem Pjanic would "certainly play some minutes, although he is not 100 percent," on Saturday. Enditem
"Hopefully we will renew our cooperation someday in the future. We are family as always," the club added.
Granada dedicated the rest of the game to conserving energy ahead of their weekend La Liga game at home to Alaves, while the home side were reduced to 10 men in the 80th minute after Fabjan Beqja was sent off for two yellow cards.
The Bayern striker indicated his club might use different line-ups and tactical approaches to get through the season.
Hertha took the initiative from the kick-off whereas Bremen focused on their defence.
"My wish is to improve my personal best, but this will be my first event of the season, so I don't know what awaits me ahead but I'm promising impressive results," said Sawe, who holds Kenya's national record of 2.25m.
"I spoke to him yesterday (Friday) before training; I think that the young players have to play regularly and that is what I told him," Koeman commented, adding that the same went for Carles Alena and new signing Pedri.
Atletico Mineiro, who are managed by former Argentina and Chile boss Jorge Sampaoli, now have 21 points from 10 matches, one point ahead of second-placed Internacional, who have a game in hand.
Fresh from his early goal, Salah looked in fine form, and added his second and Liverpool's third when he crashed an unstoppable half-volley past Illan Meslier in the Leeds goal to make it 3-2 to the champions at half-time.