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  At 63-63, Robertson took the first frame with a respotted black but Carter took the second with a 94 break.
  Carter won the third frame to go 2-1 up but Robertson fought back with a break of 43 and 57 to take a 3-2 lead.
  However, Carter came from behind to seize victory, as he won three straight frames including an 84 break.
  He will face off against Trump, who beat Ronnie O'Sullivan on Wednesday, in Friday's semi-final.
  Semi-finals
  Judd Trump v Ali Carter
  Mark Selby/Marco Fu v Ding Junhui/Anthony Hamilton
  Quarter-finals
  Mark Selby v Marco Fu
  Ding Junhui v Anthony Hamilton
  Neil Robertson 3-5 Ali Carter
  Ronnie O'Sullivan 3-5 Judd Trump
  Round one
  Stuart Bingham 1-5 Anthony Hamilton
  Ronnie O'Sullivan 5-1 Liang Wenbo
  Mark Selby 5-4 Ryan Day
  Marco Fu 5-1 Anthony McGill
  Barry Hawkins 0-5 Neil Robertson
  Judd Trump 5-2 Mark King
  Ding Junhui 5-4 John Higgins
  Ali Carter 5-4 Shaun Murphy
summary: Ali Carter beat Neil Robertson 5-3 in the Players Championship quarter-final in Llandudno, to set up a semi-final tie against Judd Trump on Friday.