West Brom were held to a battling draw by Millwall at The Hawthorns to make it four games without victory for the Baggies.
Albion were indebted to a penalty save from Alex Palmer on 28 minutes, when he turned Zian Flemming's spot-kick around the post.
Lions keeper Bartosz Bialkowski made an instinctive stop to deny Matt Phillips, while Alex Mowatt and Brandon Thomas-Asante thudded the bar as Albion sought to win it.
Millwall - who go up to 10th in the Championship - have now lost only one of their past nine games against the Baggies.