Alexander Isak smashed his way through the 20-goal barrier as Newcastle boosted their European hopes by denting those of Tottenham.
Tottenham made their way back into the top four with a thrilling 3-1 victory over relegation-threatened Nottingham Forest following second-half goals by Micky van de Ven and Pedro Porro.
Tottenham lost more ground in the battle for a top-four finish after they were held to a 1-1 draw at West Ham.
Ange Postecoglou believes Tottenham can be title contenders in 12 months' time.
Tottenham head coach Ange Postecoglou has leapt to the defence of "outstanding" West Ham boss David Moyes.
Tottenham bolstered their Champions League qualification hopes with a 2-1 win over Luton, thanks to a late winner from Son Heung-min.