Tottenham's Thomas Frank has admitted Arsenal are "one of the best teams in the world" ahead of the first-ever north London derby played outside the UK.

News of Morgan Gibbs-White signing a new Nottingham Forest deal only served to dampen Spurs' spirits further, but 10 days away from familiar surroundings may do Frank and co the world of good, as they prepare for three more friendlies in three different countries.

New Tottenham manager Thomas Frank admitted Tuesday that a pre-season clash against Arsenal in Hong Kong would be his first "great challenge" since taking charge and warned it would be "more than a friendly".