Glasgow: Celtic retained top spot in the Scottish Premiership on Saturday with a 1-0 win against Dundee enough to keep them ahead of Aberdeen on goal difference. French midfielder Olivier Ntcham found the net with a powerful low shot from 25 yards just after the hour mark but Scott Bain in the home goal should have done better. Ntcham’s effort was well-struck and moved in the air, but close enough to the centre of the goal that Bain should have got his body behind it. Victory kept the visitors ahead of second-placed Aberdeen after the Dons also won 1-0 away from home. They made it three straight wins with success at Hibernian, Gary Mackay-Steven providing the finish to a flowing move in the 38th minute to seal the points.