A brace for Mohamed Salah, along with goals for Luis Diaz and Sadio Mane saw a hugely disappointing result for Ralf Rangnick’s side.
“It’s a bad result once again,” Bruno told Sky Sports. “Not much that I can say. Obviously, [we] apologise to the fans. It will never be enough but obviously it is what we can do now.
“They [the fans] don’t deserve that we play in this way, they deserve much more from us. The way they support us until the end, the way they stay even after the whistle to applaud us, they deserve much more from us.