|2018 PDC World Championship|
|Date: 14 December 2017 - 1 January 2018 Venue: Alexandra Palace, London|
|BBC coverage: Daily reports on the BBC Sport website and app, plus live text commentary of the final on 1 January|
Defending champion Michael van Gerwen and former winner Gary Anderson reached the last 16 of the PDC World Championship in London.
Dutch top seed Van Gerwen beat James Wilson 4-0 to set up a meeting with Wales' Gerwyn Price.
Scotland's Anderson marked his 47th birthday with a 4-1 win over Singapore's Paul Lim, who missed double 12 for a nine-dart finish.
Lim threw the first nine-dart finish at the World Championship in 1990.
"I should have worn my high heels - maybe then I would have hit it," 63-year-old Lim said of his ninth dart in the third leg of the second set.
"I will have nightmares tonight because I just wanted to do it."
Anderson will face England's Steve West or Dutchman Jermaine Wattimena for a place in the quarter-finals.
"Paul is a gentleman and is still a classy dart player," said Anderson. "I have so much respect for him and if he had taken out that nine-darter, that would have been the best Christmas present for me too."
Van Gerwen was never troubled against 32nd seed Wilson, winning 12 consecutive legs in a match where he averaged 108.65.
"I will have a happy Christmas - everything is good," Van Gerwen said.
"You are here to win and the only thing in your mind should be to win. In this tournament they have to be at a different level to beat me."
Price beat Ian White 4-1 to book his place in the last 16.
Fifth seed Mensur Suljovic, the Champions League of Darts winner, beat Scotland's Robert Thornton 4-2, completing victory with a 121 checkout and a bullseye.
Austrian Suljovic will next face Belgium's Dimitri van Bergh, the 2007 youth champion who beat Dutchman Jan Dekker 4-2.
Dekker's compatriot Vincent van der Voort advanced by beating Steve Beaton 4-0.