Albion and Millwall played out a goalless draw at The Hawthorns on Saturday afternoon.
The visitors were denied a first-half opener by Alex Palmer, who saved Zian Flemming’s penalty.
Carlos Corberán’s men had the better of the second period, hitting the crossbar twice through Alex Mowatt and Brandon Thomas-Asante.
The boss made five changes to his team from Wednesday’s draw with Watford, bringing in Kyle Bartley, Conor Townsend, Mowatt, Jeremy Sarmiento and Grady Diangana.
But it was a quiet first period until the 30-minute mark, when Alex Palmer was the Albion hero – stopping Zian Flemming’s low spot-kick after Bartley was adjudged to have handled in the box.
The Baggies did soon brighten up, creating a few half-chances which Jayson Molumby and Diangana - twice - struck wide, yet the sides went into the break level.
The hosts came out of the blocks quickly following the restart and went close to finding an opener - Matt Phillips seeing his close-range finish superbly saved, and Mowatt smacking the crossbar with a curling free-kick.
As the game entered its final 17 minutes, the Baggies troubled the woodwork again – this time Brandon Thomas-Asante unable to guide his header home from only a few yards out.
Corberán introduced Jed Wallace and John Swift in an attempt to earn the win, however Albion just couldn’t break the deadlock and it ended goalless.
Albion: Palmer; Ajayi, Bartley, Pieters (Furlong 77); Phillips (Wallace 77), Molumby (Yokuslu 83), Mowatt, Townsend; Sarmiento (Swift 77), Thomas-Asante, Diangana.
Substitutes: Griffiths, Kipre, Pipa, Chalobah, Fellows.
Attendance: 22,325 (1,110).