down. williams missed a key chance to claim victory late on and robertson capitalised on the shift in momentum which provided an extraordinary conclusion. robertson capitalised in the shift in momentum. roberston will now face either judd trump or barry hawkins in tomorrow's final. you can follow that semifinal at the moment on bbc two. 150th cap in the game. the other match, world champions new zealand lost to australia. novak djokovic is scheduled to begin the defence of his title at the australian open on monday, but he is of course back at