Crucible latest: Selby, Dott and Robertson reach World Championship semi-finals

Former world champion Shaun Murphy had the better of the morning session in his match with Ali Carter.

Leading 5-3 overnight, the 2005 winner traded the opening the first two frames in a low scoring match.

Carter had chances in all four opening frames, but missed chances to let his opponent in. None more so when a missed black let former Rotherham potter Murphy in to clear to the blue in a break of 84 in the 11th frame. That was the highest break of the match so far.

Carter should have pulled back to 7-5, but two amazing shots snatched the 12th frame for Murphy to lead 8-4. Down to the colours and trailing, Murphy looked like he would have to play for safety on the green, but produced a stunning long-range effort to sink it.

He then followed it up with an equally-impressive Brown before cleaning the table to leave Carter cursing his inability to clinch the frame.

The mid-session break was just what Carter needed, as he returned to take the final four frames, highlighted by breaks of 87 and 73, to level the match at 8-8.

There was little to chose between the two in the evening session, as they traded frames. Murphy took a 12-11 lead and was ahead 48-6 in points, but Carter would not give up and battled on.

On the other table this morning, Graeme Dott beat Mark Allen 13-12, coming from 12-10 down, a result which secured his place in the elite top 16 next season.

Six-time winner Steve Davis finished an amazing tournament at the quarter-final stage, losing to Neil Robertson 13-5.

Leading overnight 12-4, the Australian needed just one frame to eliminate 52-year-old Davis, who knocked out current world champion in the previous round in one of the biggest Crucible upsets of all time.

But the 52-year-old won the opening frame to great cheers from the Crucible crowd, before Robertson secured victory with a 107 break.

World No 1 Ronnie O'Sullivan crashed out to Mark Selby 13-11.