Snooker World Championship: Ronnie O’Sullivan closes in on quarter-final spot as it’s not Ryan’s day

Ronnie O’Sullivan leads Ryan Day at the World Championship (Martin Rickett/PA)

Ronnie O’Sullivan opened up a 10-6 lead on Ryan Day to move within three frames of another World Championship quarter-final appearance.

O’Sullivan, aiming for a record-breaking eighth Crucible success, built on a 5-3 first-session lead by making Day pay for a succession of missed chances.