Millwall moved back to second in the Championship as they were held to a goalless draw at lowly West Bromwich Albion.
The Lions moved one point ahead of Ipswich Town, who have three games in hand, and Middlesbrough in the race for automatic promotion before both play on Saturday.
Josh Coburn volleyed wide and Mihailo Ivanovic hit the crossbar as the away side came closest in the first half.
The Baggies did not have a shot on target until the 82nd minute, when Millwall goalkeeper Anthony Patterson diverted Jayson Molumby's shot wide from point-blank range.
But it was the hosts who ended the game the stronger as they extended their unbeaten run under James Morrison to seven matches.
Millwall showed early on their threat on the break as Thierno Ballo went close after being played through by Ivanovic.
Coburn should have given the visitors the lead on 17 minutes when he met Ballo's brilliant cross on the volley but put it wide of Max O'Leary's post.
With the game being played in the middle of the park and no shots on target from either side, Ivanovic sparked Millwall into life with a curling shot from distance that came crashing down off the crossbar, with Camiel Neghli drawing a good stop from O'Leary soon after.
The Baggies improved after the break with Daryl Dike heading over and Molumby sending an effort wide from distance.
Having had nothing to do all game, Patterson produced a brilliant save to deny Molumby late on when the ball landed at the feet of the Albion midfielder in the box - with Patterson making himself big to block the ball behind for a corner.
Ousmane Diakite headed narrowly wide from the set piece that followed and neither side could find a way through in the eight minutes of added time to settle a battling draw.
The result moves Albion five points clear of the relegation zone before the rest of the weekend's fixtures.