Tommy Fleetwood takes the lead three times in Jumeirah Golf Estates in Dubai. Second round leaderboard-11 Wallace (Eng); -10 Smith (Eng), Otaegui (Spa); -9 Willett (Eng), Reed (USA); -8 Aphibarnrat (Tha), Burmester (SA), Fleetwood (Eng), McIlroy (NI) Other selected: -7 Bjork (Swe), Stenson (Swe); -6 Lewis (Eng), Rahm (Spa), Pavan (Ita), Cabrera-Belo (Spa), Pieters (Bel)
Tommy Fleetwood came into the race to keep his title Race to Dubai with a five-under -second round 67 at the DP World Tour Championship.
The Englishman, 27, who is ranked sixth in the standings, has to win this weekend to overtake Race to Dubai leader Francesco Molinari.
The Open Champion fell from the field to 27th after a one-over-73 at Jumeirah Golf Estates in Dubai.
Leader Matt Wallace, who is 65, is chasing his fourth title of the year.
Rory McIlroy shot a second round 67 and left him at eight under, similar to Fleetwood.