Tottenham manager Ange Postecoglou has explained his bold double substitution at half-time against Arsenal was in response to a poor opening 45 minutes. Spurs took the lead, slightly against the run of play, in the north London derby when Heung-min Son's deflected effort found the bottom corner to stun the majority inside the Emirates Stadium.

Tottenham manager Ange Postecoglou has branded his side's performance against Arsenal "not acceptable" and admits the "responsibility lies with me" for their 2-1 defeat