The Premier League weekend undoubtedly saved its best until last, with Chelsea and Manchester United partaking in a rather incredible match at Stamford Bridge.Pre-match build-up focused on Jose Mourinho's negative tactics against Liverpool on Monday night and whether he'd use them again upon returning to his former club.But in truth, the Portuguese never got the chance to implement his eleven-behind-the-ball policy, as Chelsea winger Pedro put United behind just 30 seconds after the opening whistle.And the humiliation didn't relent for the visitors, who eventually found themselves on the receiving end of a harrowing 4-0 defeat to the west Londoners.Like much of the footballing world, we at FootballFanCast have gone statistics mad over the last few years, and due to the nature of Sunday's surprise scoreline, Chelsea's win has certainly thrown up a few numerical gems for us to feast on this afternoon.Ranging from the defensive contribution of a winger-forward to the potentially result-deciding absence of one Man United star, we've picked out the three most surprising stats from Sunday's game.

VICTOR MOSES: DEFENSIVE BEAST

victor-moses-defensive-vs-chelsea

Victor Moses is enjoying a mini-renaissance under Antonio Conte, particularly since being deployed as a right wing-back in the Italian's exotic 3-4-3 formation. He grabbed a goal against Leicester City the weekend previous but it was the Nigerian international's defensive qualities that really stood out against Manchester United on Sunday, ranking first for interceptions, joint-first for clearances and second for tackles throughout the ninety minutes. Courtesy of Whoscored.

MATA THE MISSING INGREDIENT

It's illogical to suggest any attacking midfielder, let alone one criticised for his defensive efforts as constantly as Juan Mata, could have stopped United conceding four goals against the Blues. Nonetheless, the correlation between the Spanish playmaker's presence and United's ability to pick up points is impossible to ignore. Will he start the Red Devils' next top flight clash against Burnley?

MAN UNITED'S OCTOBER HOODOO

A rather freaky phenomenon, all the freakier coming in the same month as Halloween. Manchester United's four biggest Premier League defeats have been in October. And the reading gets even grimmer for Jose Mourinho  - seeing his side concede four goals in a Premier League game for just the second time in his career.