Read our in-depth guide to Saturday's gameMillwall head to the New York Stadium on Saturday to face Rotherham United in a crucial Championship match for both clubs (3pm).
The Millers sit in 21st - one place and three points above The Lions - but a win by three goals for Ian Holloway's men this weekend would see Millwall climb above Rotherham on goal difference.
Steve Evans' Rotherham side are without a win in four games and have conceded eight goals without reply in their last two matches. At home, however, they have won two of their last three games - against Bolton (4-2) and Ipswich (2-0) - and earned a point against League leaders Derby (3-3).
Millwall's disappointing home form continued with a 3-1 defeat to Sheffield Wednesday earlier this week, but on the road The Lions have won two of their last three games, conceding just the once.
Millwall will be without Shaun Cummings (thigh), Lee Martin (foot), Paris Cowan-Hall and Carlos Edwards (both knee).
Stefan Maierhofer (quad) is unlikely to be risked while Martyn Woolford and Gary Taylor-Fletcher, who picked up rib and foot injuries respectively against Sheffield Wednesday, will be assessed ahead of the game.
Evans' only injury problem is the absence of Lee Frecklington, who will once again miss out with a hernia.
Saturday's match marks the 34th meeting between Rotherham United and Millwall - and the first at the New York Stadium, The Millers' new home.
The Lions hold the upper hand when it comes to the head-to-head record with 13 wins to Rotherham's 11 in all competitions.
But Evans' men were victorious in the most recent meeting when Ben Pringle's goal secured all three points at The Den back in August.
As ever the Lions Player team will be bringing you full match commentary from 2.50pm.
We will also have all the usual updates via @MillwallFC - the club's official Twitter account. Get involved with the conversation before, during and after the game by tagging your tweets with #RUFCvMFC
This weekend's game is all-ticket. There will be no sales to Lions fans on the day.
Info for travelling fans
South Yorkshire Police have issued the following statement ahead of the game:
South Yorkshire Police officers aim to deliver a safe, enjoyable environment when Rotherham United meet Millwall at the New York Stadium on 28th February.
The Championship teams will take to the pitch in Rotherham at 3pm on Saturday, and fans should expect a welcoming and reassuring police presence, which is prepared to react and deal with any disorder that may occur, says Match Commander, Chief Inspector Richard Butterworth.
More than 10,00 supporters are expected to attend the game at the New York Stadium, on New York Way, with 1,300 Millwall fans predicted to arrive from London and advised by the licensee of the Bridge Inn that they will be able to benefit from increased capacity at the premises.
Chief Inspector Butterworth, who is overseeing the policing of the match, said: "Welcoming fans while preventing crime and disorder is a key focus. We aim to deliver a safe, enjoyable environment for fans, the public and those going about their daily business.
"We hope those attending the game have a pleasant time and that there is minimal disruption. No level of violence or disorder will be tolerated, and we will have the resources in place to deal with any issues that do occur.
"I would advise all fans to plan their route to the game and leave plenty of journey time, due to an inevitable increase in traffic in the area."
Rotherham United and South Yorkshire Police have been liaising with Millwall and their supporters' clubs to ensure this is an enjoyable and safe fixture.
Paul Davis, stadium manager for Rotherham United, said: "Rotherham United would like to welcome Lions fans to the AESSEAL New York Stadium for the first time in what is likely to be an exciting encounter for both sets of supporters.
"Turnstiles will open at 1.30pm and kiosks will be open to serve a full range of refreshments. Please note that there are no ticket sales on the day so all tickets must be purchased in advance from Millwall."
Millwall added: "We welcome the positive approach from South Yorkshire Police and in particular their contribution in maintaining the 3pm kick-off time and ensuring the most convenient travel arrangements for both sets of fans. We look forward to a cracking match and to enjoy the facilities at Rotherham's new stadium for the first time."
South Yorkshire Police will communicate with Rotherham United and Millwall fans via social media before and during the match, advising on turnstile opening times, transport options, refreshments, and any issues that may occur. For updates, please follow @Police_RUFC and @SYPRotherham on Twitter.