Our bite-size lowdown on our next opponents...
The Lions are back in the Sky Bet Championship this season following their League One Play-Off Final victory over Bradford City last season at Wembley.
After going winless until the final game in August, the London club have improved dramatically since then and are currently unbeaten in four games.
At The Den they have won their last three; 4-0 against Norwich City, a 1-0 win over Leeds United and last time out on Tuesday night, Millwall came from behind to record another home success, beating Reading 2-1.
Tomorrow's hosts currently sit 12th in the table, having won three, drawn four and lost three of their 10 games played so far this season.
IN THE DUGOUT
Neil Harris was a popular striker with Millwall, with over a decade of service and becoming the club’s all-time record goal-scorer, notching 138 times for the Lions.
Harris was diagnosed with testicular cancer in 2001 but thankfully given the all-clear a year later.
He was appointed Millwall Head Coach in April of 2015 and after steering the Lions to the League One Play-Off Final in 2016, only to be defeated by the Reds, he took them back a year later and sealed their Championship return with Bradford City seen off 1-0.
At just 40-years-old, Harris is building himself a growing reputation in the Football League, in much the same vein as Reds gaffer Paul Heckingbottom. A former player coaching his ‘own’ club, success in League One followed by competing a level higher.
Lee Gregory returns to availability following the completion of his three-match suspension.
Tom Elliot remains unavailable for selection.
Their last starting line-up: Archer, McLaughlin, Meredith, Hutchinson, Williams, Onyedinma, Wallace, Webster, Morison, Saville, O'Brien.
KEY MAN - STEVE MORISON
The striker joined Millwall on an initial one-year contract just four days before the start of the 2015-16 season.
The deal marked the 32-year-old's third spell at the club having previously played for The Lions between 2009 and 2011 and then on loan during the 2013/14 season. During those two previous stints combined, Morison netted an impressive total of 48 goals in 137 appearances for the club.
The powerful frontman began his career at Northampton Town but it was with Stevenage where his reputation soared. After netting 76 goals in 142 games for The Boro, Morison signed for Millwall in 2009 under then manager Kenny Jackett and went on to play a pivotal role in the club's promotion to the Championship that season.
Just a few months later he earned his first call-up to the Welsh national squad, making his debut in a 5-1 win over Luxembourg. Morison continued his impressive form in front of goal throughout the 2010/11 season and hit the back of the net 17 times as The Lions finished ninth.
Less successful spells with Norwich City and Leeds United followed, as well as a productive loan return to Millwall.
His full-time return to The Den came so close to having a fairy-tale finish with promotion, but the Reds toppled the Lions 3-1 at Wembley in the 2016 Play-Off Final. Morison, who signed an extended contract in February 2016, ended the campaign on 19 goals - his best return since 2009/10.
The striker, though, was to repeat that feat in 2016/17, scoring 19 times on the club's way to winning the Sky Bet League One Play-Offs. Morison was integral in The Lions' promotion, scoring twice in the Semi-Final second leg victory over Scunthorpe United, before netting the late winning goal in the Wembley Final against Bradford City.
Barnsley 3-1 Millwall – Sky Bet League One Play-Off Final – May 29th 2016
The Reds sealed promotion back to the Championship as two goals in the first 19 minutes set up the League One Play-Off final win over Millwall.
Ashley Fletcher slotted home after just 88 seconds, before Adam Hammill's stunning, 25-yard curling shot doubled the lead.
Barnsley-born Mark Beevers fired in Millwall's reply from close range before half time but Lloyd Isgrove's header secured victory once more at Wembley for the Reds and Paul Heckingbottom.
THE DEN – DIRECTIONS
Travelling by Train
Millwall Football Club is located in close proximity to several different stations.
In terms of over-ground rail, South Bermondsey station is the nearest at approximately five minutes walk away with regular trains from London Bridge stopping there.
Surrey Quays over-ground station is about a 20-minute walk away while walking from New Cross or New Cross Gate over-ground stations will take around 30 minutes.
The nearest underground station is Canada Water, which is on the Jubilee Line, and is roughly 20 minutes’ walk to the ground.
Visit www.tfl.gov.uk to plan your journey.
Travelling by Car
Unfortunately the club has no car parking facilities for supporters so getting to The Den by public transport is advisable. It is recommended that away fans get to the ground either by official supporter coach or by rail to South Bermondsey station. A walkway link is available to the stadium on matchdays for away supporters only.
From the North
Follow City signs from the A1/M1, then signs for Shoreditch and Whitechapel. Follow Ring Road signs for Dover, cross over Tower Bridge and after one mile take the first exit at the roundabout onto the A2. From Elephant & Castle take the A2 (New Kent Road) into Old Kent Road and turn left after four miles at The Gem Bar into Ilderton Road to Zampa Road, SE16 3LN.