To make things worse for Schalke, Leipzig continued on the front foot and made it 3-0 just before the break as Marcel Halstenberg's cross allowed Willi Orban to make it three.
Edin Dzeko wasted a good opportunity in the 21st minute as the hitman sprung the offside trap but ballooned it over the bar.
Arsenal had led 2-0 through goals from Bukayo Saka and Nicolas Pepe, but McGoldrick's goal left them clinging on for the final whistle.
"We are an experienced team and know that we can do well without very important players," Gareca told reporters. "We have to be mentally prepared and make sure we are focused from the very first minute of the first match."
When facing Turkey in a friendly in Cologne, the national coach Joachim Loew not only has to give several of his vital players a break but also to deal with various cancellations.
"They are a strong team. Our young players seemed to be a bit afraid of that in the first half, while making some adjustments after the break," Tianjin coach Liu Hao commented, also hoping that his side can progress and improve after the loss. Enditem
Osasuna got back to winning ways with a 2-0 win at home over Celta Vigo, thanks to a 23rd-minute goal from Facundo Roncaglia, who fired home from outside of the Celta penalty area, before crossing for Jonathan Calleri to head home the second for the Pamplona-based outfit 14 minutes from time.
With the result, Dortmund now sits third in the table, whereas Freiburg suffered its first defeat and slipped to the 11th spot.
Her former teammate in Beijing, Shi Xiufeng, showed an eagerness to return to court.
Once again Getafe is off to an excellent start to the season and although its style of football is not always attractive to watch, it is effective as it showed against Betis in midweek.
For Shao Ting, another national player changing her club during the off-season, the league's organizer has done an excellent job in terms of anti-virus measures.