Leicester City are on course to maintain their recent good form after edging in front against Millwall at The New Den.
The Foxes, who started the game four points clear of second-placed Derby at the top of the Championship, made a perfect start on six minutes when Anthony Knockaert's 25-yard drive was too good for David Forde.
Nigel Pearson's side almost doubled their lead moments later when David Nugent found Gary Taylor-Fletcher six yards out, but the former Blackpool player dragged his effort wide.
The Lions posed problems of their own and when Nadjim Abdou won the ball in midfield, Scott McDonald turned away from Marcin Wasilewski and produced a fine save from Kasper Schmeichel just before the half-hour mark.
Millwall, who have yet to find a permanent manager since sacking Steve Lomas on Boxing Day, came into the game having conceded more goals than any other Championship club this season.