Jos Buttler scored a quick fifty © PA Images via Getty Images

James Hildreth marshalled the chase © Getty Images

Jason Roy frees the arms © PA Images via Getty Images

Virat Kohli and Kane Williamson have a chat after the WTC final © ICC/Getty Images

Jos Buttler gets out the ramp © PA Images via Getty Images

New Zealand's pace line-up: not so menacing after the day is done © ICC/Getty Images

Job done, New Zealand soak in the victory © ICC/Getty Images

Dasun Shanaka tried to rescue Sri Lanka © PA Images via Getty Images

Adil Rashid celebrates after team-mate Chris Jordan's catch to remove Wanindu Hasaranga © PA Images via Getty Images

Ross Taylor and Kane Williamson put on an unbroken, match-sealing stand of 96 © PA Photos/Getty Images

Chris Jordan celebrates with Jonny Bairstow after catching Kusal Perera © Getty Images

New Zealand's 15 for the WTC final with their prize: (front L to R) Ajaz Patel, BJ Watling, Devon Conway, Neil Wagner, Kane Williamson, Tim Southee, Tom Latham, Trent Boult, (back L to R), Will Young, Tom Blundell, Matt Henry, Henry Nicholls, Kyle Jamieson, Ross Taylor, Colin de Grandhomme © AFP/Getty Images

Kane Williamson gets his hands on the Test Mace © Getty Images

Chris Jordan struck in his first over © Getty Images

Kane Williamson acknowledges the applause on getting to a fifty in New Zealand's chase © PA Photos/Getty Images

Sam Curran gets a pair of high fives from his captain © Getty Images

Danushka Gunathilaka drives during the Powerplay © Getty Images

Ross Taylor and Kane Williamson share a moment after making New Zealand World Test Champions © Getty Images