Chris Sutton's World Cup quarter-final predictions

Four more teams will be heading home after the World Cup quarter-finals, but which four will be staying on for the semi-finals?BBC Sport football expert Chris Sutton did pretty well with his predictions for the last 16, with Switzerland's penalty shootout win over Colombia the only tie to catch him out.AI found things harder, and was wrong about Brazil's defeat by Norway and the USA's elimination at the hands of Belgium.For once, the users of the BBC's new predictor game did not take bragging ri