看看真菲粉是怎麽說的：

Of the Big Four players, Federer's first three opponents are the toughest based on their combined 52-week rankings and combined year-to-date rankings (followed by the opponents of Murray, Nadal and Djokovic). Yet Federer's overall results have been as good as Djokovic or Nadal's overall results, at least. Federer's masterclass against Mannarino was arguably the best, most dazzling display of tennis so far at this US Open. Mannarino made only 14 unforced errors.