Ryan Mason said his West Brom side "didn't do enough" in their 3-0 defeat at Millwall.

Goals from Jake Cooper, Femi Azeez and Zak Sturge gave the Lions a huge victory at The Den.

They are now level on points with West Brom and Mason was very disappointed in the performance.

"Every aspect of the game we were probably outdone, which is tough to take," Mason told BBC Radio WM.

"We didn't assert ourselves or show enough quality and personality.

"I need to work that and get more out of the lads. We didn't deserve anything today, it is the worst performance of the season. It is difficult when you've got two weeks to sit on it, but it is also two weeks to work and make sure it doesn't happen again."

Mason said the Baggies were not as "together" as they were in the win over Norwich last week, despite not being too pleased with that performance either.

"It is football. This happens. On Wednesday night we had some good things, the performance wasn't what we wanted to to be but we had a togetherness that got...