Millwall 0 Walsall 1 - Fan pictures
Check out our picture gallery of fans at the New Den as Walsall went back top of League One after Milan Lalkovic's goal at Millwall.
The Slovakian slotted home his seventh goal of the season, when he outpaced Carlos Edwards and slotted past goalkeeper David Forde just before the half-hour mark.
Lalkovic and Anthony Forde both went close to increasing the Saddlers lead before half-time.
Millwall improved after the break but Aiden O'Brien's header, which hit the bar, was the closest they came to an equaliser.
Saddlers goalkeeper Neil Etheridge also made a crucial save from Sid Nelson during six minutes of stoppage time, as Sean O'Driscoll's side held firm.
The win continued his 100 per cent record as head coach and was enough to send his team back top of the league, as pre-game leaders Burton saw their game at Bradford postponed.