Ronnie O’Sullivan closes in on World Championship quarter-final spot

Ronnie O’Sullivan (left) and Ryan Day look at the table as the seven-time world champion carved out a 10-6 lead at the Crucible (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.