Luis Enrique's team left it late and flabbergasted the hosts when Moreno flicked on a cross before Gaya poked home with a turn shot from very close range in the closing seconds of injury-time.
"One, it will be good economically. But also it will make sense in a context where we might still face a COVID situation. To what extent we don't know, but at least we'll have thought about what it takes to deliver an event like the Games in such an environment."
Djokovic's exit means there will be a first-time Grand Slam champion in the men's draw, with Zverev among the contenders at Flushing Meadows.
But after that goal, Poland took control of the game for the rest of the first half, and their domination paid off when Kamil Glik equalized just before half-time.
Kosgei was later disqualified for stepping onto the infield in the closing stages.
PSG's sporting director Leonardo has hit out at the FFF for the manner in which he discovered that Mbappe had tested positive.
Belgium swept Iceland 5-1 at home to lead Group 2 with two wins, and Denmark drew 0-0 with England as both teams failed to create good chances. Enditem
"I feel like every day I'm on a new journey, and in this tournament in particular and this year," Williams said. "So I feel really good. I feel like I'm on that journey and I'm going in the right direction."
"I have to explain my philosophy to my players, but it is not possible without playing football. This is a key issue that needs to be taken into consideration," Skocic said.
"We do not know which contract you have analyzed and what is the basis for you to conclude that it has a "recession clause" which is applicable if the player decides to unilaterally extend this contract."
Also on Thursday, former Italian international Eder scored the winner to help Jiangsu Suning beat Shangdong Luneng 1-0.