Alexander Isak stung Tottenham with a second-half winner against the run of play as Ange Postecoglou’s side dominated Newcastle yet fell to a 2-1 defeat.
Spurs had 20 shots with 12 coming in a one-sided second period to Newcastle’s nine in total, but without injured strikers Dominic Solanke and Richarlison plus centre-back Micky van de Ven, they lacked a cutting edge and conceded two poor goals.
Tottenham were stunned twice when they were on top. Barnes delivered the first in the 37th minute when he coolly slotted into the bottom corner after the visitors switched off at a throw-in.
