Reus struck in the 2-1 first-leg quarterfinal loss.
He later said, "We delivered a good performance. We fought until we could no longer. It is extremely frustrating that we did not score more than once from our chances, and then we received a late goal that felt inevitable.
"We played a little with the fire. City are very cunning and they give you a false sense of security that we saw from the first goal.
"The threat was there, but we played well with the ball, kept calm and had a sense of security in our game. It was great, but we lost the match 1-2, and so it does not count too much."