All you need to know about tonight's game
Millwall make their first trip to Port Vale since January 2008 when they head to Vale Park on Tuesday night (7.45pm).
The Lions' last visit to their League One rivals ended in bitter disappointment when, having taken a 1-0 lead through Gary Alexander, the home side levelled and then took full advantage of Richard Shaw's harsh second-half dismissal to bag two late goals through Keith Lowe and secure a 3-1 win.
However, Neil Harris' side have not been beaten on their travels this season, recording seven points on the road with wins at Shrewsbury Town (2-1) and Crewe Alexandra (3-1), plus a 0-0 draw at Scunthorpe United.
Millwall boss Neil Harris is not likely to tinker with his starting line-up as The Lions look to record back-to-back League wins for the first time since August 2014.
Sid Nelson faces a late fitness test after sustaining bruised ribs in an accidental collision during the weekend win at Crewe, but fellow defender Joe Martin could be back in contention for a place in the squad having recovered from an ankle injury. Martin, who can operate at left-back and centre-half, has been stepping up his fitness over the last 10 days.
However right-back Shaun Cummings, remains sidelined with a hamstring tear so Carlos Edwards is set to make a third successive appearance after nearly 12 months out with a knee injury.
Striker Aiden O'Brien is likely to link up with fellow frontman Steve Morison again, having marked his first League start of the season with a hat-trick at Crewe Alexandra on Saturday.
Port Vale have no fresh injury concerns following their last-gasp 3-2 win against Wigan Athletic with Byron Moore and Sam Foley both set to retain their places in an unchanged starting line-up.
Port Vale have a clear advantage in terms of wins from the previous 46 meetings with Millwall, tasting success on 20 occasions. The Valiants have also won the last two encounters on home soil.
The Lions have recorded 15 victories in all, the last of which came in February 2008 when goals from Lewis Grabban, Marc Laird and Dave Martin clinched a 3-0 result at The Den.
However you have to go back to August 1995 to find the last time Millwall came away from Vale Park with maximum points, on this occasion a goal from Kerry Dixon secured a 1-0 victory.
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Sky Bet have priced Port Vale at 13/10 for the win while Millwall are available at 2/1 with the draw at 12/5.
Lions striker Aiden O'Brien is 13/2 to open the scoring, 9/4 to score any time and 150/1 to repeat his hat-trick heroics of Saturday.
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