Ruthless Ronnie O’Sullivan opens up 10-6 semi-final lead over John Higgins

Ronnie O’Sullivan opened up a 10-6 lead in his World Championship semi-final against John Higgins (Zac Goodwin/PA)

Ronnie O’Sullivan took command of his World Championship semi-final against John Higgins in ruthless fashion at the Crucible.

O’Sullivan made breaks of 99, 91, 70 and 73 to open up a 10-6 lead, but it was the manner in which he won the last frame of the session on a respotted black which will have hurt Higgins the most.