Julen Lopetegui is demanding improvement from his West Ham side after their frustrating defeat by Aston Villa.
The Spaniard’s first competitive match in charge of the Hammers ended in a 2-1 home loss on Premier League opening weekend to last season’s fourth-place finishers at the London Stadium, with Jhon Duran - a player West Ham tried to sign earlier this summer - coming off the bench to net a late winner.