Jozy Altidore has asked Sunderland supporters to give the club's new signings time as they get used to life in the Premier League.
The United States international is one of eight new arrivals at the Stadium of Light this summer - seven of which have come from abroad - as manager Paolo Di Canio puts his own stamp on the squad.
The Black Cats striker has previous experience in England's top flight after a spell with Hull City, but warns some of the other new faces will require patience as they settle in.
"I think the supporters should be excited but patient," Altidore told the Northern Echo.
"A lot of the guys we've bought in have come from a lot of different football cultures and different styles.
"The Premier League is famous for being a fast-paced and exciting league and it will take an adjustment, for sure. [The fans] should be patient about that but it's right they're excited, because I think this is a team they can be proud of.
"At the same time you can never replicate a league game. We'll need the league games and a certain number of them to make sure that we really get our feet under the table.
"Guys who've come from Switzerland, Portugal, Italy - it's a different league and they will need their time to get used to what it is like playing in the Premier League. From there on I think they will bring out their own qualities.”
Much has been made of the strict fitness regime Di Canio has imposed on his squad this summer, and Altidore revealed how he underwent a similar level of pre-season training during his two-year stint at AZ.
He said: "It's been really good. A lot of the way that we do things here is the same as we had in Holland. We trained twice a day there, we did a lot of similar things in training - not everything, of course because every manager has their style.
"Things are similar here but every manager puts their unique stamp on things. It hasn't been that big a deal for me or a particularly big transition in terms of getting integrated into a way of playing."