Millwall celebrate after scoring in the opening seconds of the match

On-form Lewis Grabban headed Millwall into a shock early lead as the striker scored in his third successive game.

Jay Simpson doubled their lead with 20 minutes to go as the Arsenal loanee capitalised on Alan Tate's error.

Swans striker Jason Scotland scored a late penalty as the leaders fell to a first league defeat in four months.

Swansea: De Vries, Austin, O'Leary (Brandy 64), Tate, Rangel, Bodde, Britton, Pratley (Bauza 85), Robinson, Butler, Scotland.
Subs Not Used: MacDonald, Way, Burgin.

Goals: Scotland 73 pen.

Millwall: Evans, Senda, Frampton, Robinson, Whitbread, Dunne (Bakayogo 85), Grabban, Fuseini, Laird, Alexander, Simpson.
Subs Not Used: Edwards, Smith, Martin, Savage.

Goals: Grabban 1, Simpson 70.

Booked: Frampton, Simpson, Evans.

Att: 15,561

Ref: Keith Stroud (Hampshire).