West Ham boss David Moyes says they won't be underestimating Luton Town on Friday night.
Moyes is happy seeing Luton back in England's top-flight.
He said, "It's a brilliant achievement from Luton Town to get themselves in the Premier League. They've done great work. To be fair too, they've been knocking on the door for a couple of years and I think it's always been tough to go to a newly-promoted team for their first home game of the season.
"We're the ones that got that call, but all we can do is prepare our team as best as we can. We will make them aware of Luton's qualities and I'm sure they'll use the tight environment at Kenilworth Road to their advantage.
"I've managed at Kenilworth Road over the years and everyone is well aware of the small dressing rooms, the tight tunnel and the crowd there. I actually think there are a lot of players who actually enjoy it. The fans are closer and you can see everything up close. It's good.
"I would say that what Rob Edwards has done for Luton Town, to get them in the position they are in, is a great achievement. It's great he has recovered from his tough spell at Watford and he's proven any doubters wrong.
"I think he's fitted into Luton really well and he's given those supporters Premier League football. Rob has now got a big challenge of keeping Luton in the Premier League and it won't be easy for him, but he's got a lot of things going to his advantage."