https://www.youtube.com/watch?v=D7VuIU4SlzY

To have any chance of catching Manchester City this season the pursuing clubs will require a focus that is unwavering, and the Chelsea team that Antonio Conte watched stumble to their first league defeat since Oct 14 did not look even close to the required standards.

Perhaps it was inevitable that after 12 months of drilling his team to renew their concentration week after week, eventually it would slip for the champions but it was a surprise just how meekly they went in the end. West Ham had a gameplan to contain the threats in the away team but that alone is no guarantee unless those particular assets are as out of tune as they were on this occasion.

Alvaro Morata lashed a shot wide with seven minutes left when N’Golo Kante had picked him out and Arthur Masuaku had obliged the Chelsea striker by playing him onside but that was about it for Chelsea. This was a good afternoon for David Moyes, one in which his defensive organisation was obvious and his players seemed to respond. The new West Ham manager needed something to change the mood and seeing out a victory over the team in second place at the start of the day is as good as any.

Eden Hazard was denied the space alongside Morata by a shrewd tactical job from Moyes that had Pedro Obiang defending just in front of his two centre-backs and as the game developed you could see the home team’s confidence growing.

Moyes had dropped Joe Hart in favour of retaining the Spanish goalkeeper Adrian Lopez, a decision that will have major repercussions for the Englishman in a World Cup season, but clearly the right move. Having had precious little good fortune in his month so far in east London, Moyes saw Marko Arnautovic score his first goal for the club within five minutes from a simple but well-worked move from the right.