Sunderland boss Paolo di Canio expects a settling in period for his new signings.
He says it is not easy to adapt to both his regime and playing in a different country.
"Some of the players come from abroad, Giaccherini for example," said Di Canio. "I'm very happy with him.
"He understands my philosophy straightaway. Some others may take a bit more time, but it's not an issue.
"Saturday was only the second real test for us after 23 days together.
"Some of them have suffered during our pre-season, because as they told me, it's never happened to them. They've ran a lot and done double sessions every day."