Dott surges ahead against mis-firing Rocket

Ronnie O’Sullivan was completely out of sorts as Graeme Dott threatened to pull off a shock victory in their 888.com World Championship semi-final by winning the opening four frames to move 12-8 ahead at the Crucible Theatre.

The Rocket was still struggling to reach anything like top form, constantly failing to convert half chances and not looking comfortable with his long potting game.