West Ham boss David Moyes says they can take momentum into their clash with Wolves after victory over Brentford.
West Ham meet Wolves later today.
Moyes said: "Brentford was a terrific result for us; it was not an easy place to go and win.
"We found it hard against them in the league the week before as well. So, to go and get a good result against them was good. We're pleased because you want to be in a cup competition, as we are in the European competition too, so long may that continue.
"I think Wolves have always been a good team.
"They've had some really good players in their line-up over many years. We played against [Julen Lopetegui] last year when he was managing Sevilla, so we have a good idea of what his threats and his style are.
"I see little bits of that [at Wolves] at the moment. They're looking to make a few signings as well; we'll sort of try to see what they're doing and adding. But it's always been a difficult game, Wolves. And over the years, they've been a good team."