British tennis player and WWF ambassador Sir Andy Murray has teamed up with House of Cards star Kevin Spacey to star in WWF's campaign video to inspire people to help double the number of tigers in the wild by 2022.

The public can show their support by using the hashtag #DoubleTigers on social media, and Murray commented 'This year could be the turning point for tigers. It may be the best chance we have to protect these amazing animals. It's definitely a challenge worth taking on and I believe we must do all we can to help double wild tiger numbers'.