Jimmy Shan believes a raucous Hawthorns atmosphere could prove pivotal on Tuesday night as his side look to overturn a one-goal first-leg deficit.
Albion trail Aston Villa 2-1 heading into the second leg on home soil with a Sky Bet Championship Play-Off final spot still well up for grabs.
And Shan says over 25,000 buoyant Baggies can have a huge effect on the clash.
He said: “I said to the boys that we have responded very well in games when we have gone behind this season.
“We are going into the second leg behind.
“The beauty is we have 90 minutes to go and perform and turn it around.
“Our home fans will play a big part.
“We have had a good following today and they have been fantastic for us all season.
“I’m sure The Hawthorns will be incredibly loud on Tuesday night and that can spur us on.”