Video and analysis from Alexandra Palace as Luke Littler looks to go back-to-back at the World Darts Championship; watch every match live on Sky Sports' dedicated darts channel until January 3.
Live updates: https://www.skysports.com/darts/liv...r-luke-humphries-michael-van-gerwen-in-action
Live updates: https://www.skysports.com/darts/liv...r-luke-humphries-michael-van-gerwen-in-action