Manchester United looked anything but champions earlier today, as they suffered consecutive home defeats in the league for the first time in 11 years.
While all the headlines will be about the home side, Newcastle United deserve considerable praise for their performance at Old Trafford, leading to their first victory away to United since 1972.
Many expected David Moyes' side to bounce back after their defeat to his former club Everton on Wednesday. But they continued to lack creativity in the middle of the park, and the returning Robin van Persie had little supply.
Newcastle scored the only goal of the game in the 61st minute, when Yohan Cabaye found the net. And in something of a repeat of United's loss to the Toffees, the visitors' goal came after Patrice Evra had struck the woodwork with a header.
The hosts also had calls for a penalty turned down after Vurnon Anita handled on the line, but in the end Newcastle deserved the victory and Moyes has plenty of thinking to do in the days ahead.
The boos that rained down on him at the final whistle suggest the fans will be asking many questions of their own.