Speaking to club media, Rooney said: "It was difficult to believe after an hour, being 3-0 down. I was very concerned. Some of the defending was nowhere near good enough. I'm angry today. I'm very angry today with that performance because we're better than that, and that's not us.
"Great, we come back, we kept fighting, we showed a spirit, but that performance is not us, and I'm very disappointed. I just felt we were in a bit of a daze really. We weren't getting to the ball; stray passes were getting them one v one. The goals we conceded were very easy goals to concede.
"I can't accept that performance. I’m delighted, obviously, that we got something out of the game, and we kept fighting. It's great when you come back and you do get something from being three goals down but, performance wise, that's nowhere near good enough."