Rory McIlroy is four off the lead at the halfway mark of the DP World Tour Championship.
He carded a second successive round of 68 to sit on 8-under par, with England's Andy Sullivan leading the field on 12-under par.
McIlroy's closest rival in the Race to Dubai standings, Danny Willett, is on 6-under.
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Shane Lowry is toward the other end of the leaderboard on 1-over after a 70.
