Harrington in contention
Padraig Harrington is three strokes adrift of the leaders after carding a third-round 70 at the Volvo Golf Champions.
Branden Grace and Nicolas Colsaerts lead the way on 10 under par, with Retief Goosen and Masters champion Charl Schwartzel one shot further back.
European captain Jose Maria Olazabal, meanwhile, still has a chance to kick off Ryder Cup year with his first win for seven years - from the depths of 596th in the world.
After a wet and wild day that saw his fellow Spaniard Pablo Martin crash to a 90 and overnight leader Grace take 75, Olazabal is only two shots off the pace.
By far the lowest-ranked player in the 35-man winners-only European Tour event, the 46-year-old stands at eight under.