Ange Postecoglou takes 'responsibility' for Tottenham's 'unacceptable' display in north London derby defeat by bitter rivals Arsenal as he labels it 'nowhere near good enough'

Tottenham had lead after Son Heung-min's 25th-minute goal but went in 2-1 down at half-time after an own goal from Dominic Solanke and Leandro Trossard's bottom-corner strike.