With Middlesbrough not in action until Wednesday, Millwall can close with within a point of second place in the Championship with a win over Derby County on Tuesday evening (19:45 GMT).
Derby are three points outside the top six as they travel to south London.
Millwall are unbeaten in their past six league games against Derby, alternating between a win (3) and a draw (3) each time.
Derby have lost just one of their past eight away league games against Millwall (W3 D4), and are unbeaten in four since a 2-1 loss in August 2018.
Having lost three of their first four home league games this season, Millwall have now lost just two of their past 14. All five of their defeats at The Den this term have been by more than one goal.
Derby have lost their past two away league games, last losing more consecutively in January 2025 (4).
Derby's Ben Brereton has scored four goals in his past five league games against Millwall, with all of those strikes coming with Blackburn between 2021 and 2023.
