David Moyes hopes West Ham's FA Cup win at Brentford will be a turning point in their season.
Two brilliant goals were unable to prevent FA Cup holders Liverpool from starting their FA Cup defence with an unconvincing 2-2 draw against Wolves.
Harry Kane scored for Tottenham with the only goal of the game to sink Portsmouth in the FA Cup.
Kelechi Iheanacho extended his fine FA Cup record by firing Leicester into the fourth round with the second-half winner in a 1-0 victory at League Two strugglers Gillingham.
Marcus Rashford scored his fifth goal in as many games after creating two others to help Manchester United into the fourth round of the FA Cup with a 3-1 win over Everton.
Harry Kane is set to lead the line again for Tottenham in Saturday's FA Cup tie with Portsmouth.