Alfie Haaland is a former City midfielder, but questioned his old team's progress to the semifinals.
"Well done, City. Congratulations. But there were some strange referee decisions over the two matches," Haaland posted to social media, who probably was referring to the controversial Jude Bellingham goal canceled in the first-leg and the debatable penalty decision against Emre Can in the return.
BVB coach Edin Terzic also said: "We are not satisfied with the decisions the officials have made during the last eight days. We do not understand why they do not use the VAR screens. Why do they not use them when they are there to help them?
"Manchester City deserved to move on, but with a little more luck in the two referee decisions we could've moved on."