Niall Horan indulged in his sporty side last night (November 11) as he watched the last match of the ATP World Tour Finals in London.

The One Direction star attended the O2 Arena as he watched Novak Djokovic beat Spaniard Rafael Nadal to win the tournament.

He even got to meet the victor, with Horan posting a picture of the pair together backstage.

He said: "Had the best night at the @ATPWorldTour #finalshowdown , congrats t @DjokerNole on a fantastic win."

The Irishman was pictured watching the big game in the stands near Arsenal footballer Jack Wilshere.

One Direction meanwhile are currently enjoying some downtime back home as they prepare for the release of new album 'Midnight Memories'.

It will hit shelves on November 25 and the record is expected to become a smash hit worldwide.