“We think Rio is fit,” said Ferguson. “He trained on Friday, Saturday and Sunday and he will start tomorrow. There is a lot of quality in Rio’s game, so he is obviously going to make a difference. Also it gets us back the partnership between Rio and Nemanja Vidic, which has been the cornerstone of our great defensive performances this season. That is the difference he will make.”

Like most reds, I breathed a massive sigh of relief upon hearing that Rio was available to start against Porto. But just how important do you think he will be?