Former Lakeside champion Mark Webster has recorded a 4-3 victory over Raymond van Barneveld to progress through to the quarter-finals of the PDC World Championship.

Webster was 3-2 behind to the five-time world champion, but the Welshman roared back with six successive legs to seal his place in the last eight, where he will face either Michael van Gerwen or Gary Anderson.

Simon Whitlock edged closer a third World Championship final appearance with a comfortable 4-0 success over Kevin Painter, and he will now face Ian White, who overturned a 3-1 deficit to beat Richie Burnett.

Peter Wright outlasted Michael Smith in a pulsating last-16 encounter, averaging over 105 in seeing off Phil Taylor's conqueror in the final set.

Wes Newton lies in wait in the quarter-finals after he dropped just one set in overcoming Robert Thornton.