Millwall could move into the automatic promotion spots when they welcome Blackburn Rovers on Saturday (15:00 GMT).
Should Middlesbrough fail to win Bristol City in the lunchtime kick-off, the Lions could overtake their promotion rivals if they extend their winning streak to a fifth consecutive league game.
But Rovers also have a lot on the line, with just one point keeping them safe from the bottom three as things stand and in real danger of dropping back into the relegation zone.
Millwall have won two of their last 20 league games against Blackburn Rovers (D6 L12), 1-0 home wins in 2019-20 and 2024-25.
Blackburn have won 16 points in their last seven league games against Millwall (W5 D1 L1), winning each of their last two against the Lions.
Millwall have lost four of their last six league games when starting the day 20+ points ahead of their opponents in the table (W2), losing 3-1 to Portsmouth most recently in February despite a 20-point pre-match advantage.
Blackburn have won five of their last eight away league games in London (L3), winning 3-1 at QPR in their most recent capital visit.
Mihalio Ivanovic has netted in two of his three Championship appearances against Blackburn, including the winner in a 1-0 win at the Den last season.
