Millwall will play their 4,000th Football League match on Saturday afternoon as they take on Leeds United at Elland Road in the Sky Bet Championship (kick-off 3pm).
Neil Harris' side visit Yorkshire looking to do the double over their rivals, but are still searching for their first away win of 2017/18.
The Whites are currently on a run of four matches without a win, being dumped out of the Emirates FA Cup by lowly Newport County in the process, whilst The Lions have enjoyed a run of just one defeat in six, sailing through to Round Four of the Cup with a 4-1 victory over Barnsley.
Harris will hope to have Shane Ferguson available, as the winger has recovered from a knee injury sustained before the Christmas and New Year period. Byron Webster remains the only long-term absentee in an otherwise fully-fit squad.
The two clubs will meet for the 34th time this weekend, with Leeds holding a narrow lead in the historical stakes, having won on 15 occasions to Millwall's 14.
Aiden O'Brien was on target in a 1-0 success in September, whilst The Lions' last success at Elland Road came in a televised clash in March 2010, as Steve Morison and Shaun Batt scored in a 2-0 win.
Around 1,300 Lions fans will make the journey north this weekend, with the club issuing the following advice to all travelling.
If you are unable to make it to Yorkshire, full match commentary will be available on iFollow Millwall from 2.50pm, whilst international subscribers can watch all the action on iFollow. Click here for more details.