The Australian world No 1 was 6-2 down against Judd Trump but he pulled it back to 7-6 and finished the session trailing 9-6. 

But Robertson charged on to a nail-biting 12-11 lead in the best of 25 match. He almost gifted Trump a shot at taking it to a final frame, but when the Bristol favourite missed a simple black it was all over. 

On the way, following some attritional play, Robertson hit the 101 break that he’s been waiting for and marked it with a fist pump. 

Robertson will take on Mark Selby, who cruised past Alan McManus while the winner will meet the winner of a repeat of last year’s final with Ronnie O’Sullivan and Barry Hawkins. 

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