Millwall's 2017/18 Sky Bet Championship fixtures will be released at 9am on Wednesday morning.
After securing promotion to the second tier via the League One Play-Offs last season, The Lions can now look forward to fixtures against the likes of Sunderland, Aston Villa, Norwich City, Queens Park Rangers and more.
In addition, Millwall will enter the Emirates FA Cup at the third round stage and will benefit from international breaks.
The opening day of the new season is sure to bring a big crowd, whether at The Den or on the road.
Past first day fixtures have thrown up a number of combinations and results for Millwall teams past and present.
The club's promotion campaign of 2016/17 got off to the perfect start on a sweltering day at The Den against Oldham Athletic. Lee Gregory's penalty set The Lions on their way early on, with strikes from Aiden O'Brien and Byron Webster either side of the half-time break easing Millwall to a 3-0 victory.
An equally hot day in Shrewsbury saw Gregory on the spot once more in a 2-1 win to kick off the 2015/16 campaign. Steve Morison notched the winning goal in the second half.
The Lions are unbeaten in their last three day opening day matches - a run stretching back to a 2-0 success over rivals Leeds United in August 2014 - but they did suffer a home defeat to Yeovil a year earlier, losing 1-0 courtesy of former Lion Ed Upson's late goal.
Take a look at our gallery of a selection of Millwall's opening day encounters above.
Remember to check millwallfc.co.uk at 9am on Wednesday morning for all the fixture news as The Lions prepare for life in The Championship!