Jaap Stam has urged his side to be fighting fit of the longest away trip of the season this weekend, with Sunderland the opponents on Saturday.
The Black Cats got their first win under new manager, Chris Coleman, last time out against Burton Albion, and the former Wales boss will be taking charge of his first game at the Stadium of Light at the weekend.
Stam has already noticed the changes that Coleman has put in place at Sunderland, saying: “I’ve seen them play already, they play a bit differently to how the previous manager did over there," Stam said.
“Sunderland like to play out from the back now as well, play a bit more possession from what we’ve seen against Burton.
“We expect them to do that as well, and it’s still a good team. It’s not easy for them in the Championship but they still have a lot of quality in the squad.
“Chris Coleman is a very experienced manager, he did very well with Wales and he’s trying to find his way with Sunderland as well now to go higher up the table.
“We’re aware of what the manager can do but we’re also aware of what their team and players can do.
“With some of their players, we know them very well so we need to be sharp and fresh, which is very important on Saturday for us to get a good result.”
Following a 3-0 victory in midweek at Madejski Stadium, Stam said he wants to see continuous improvement from his side as the season heads into the vital December fixtures.
"We're always critical of our own performance," Stam added. "We're always looking at details and talking about details of what we need to do better.
"In my opinion, I think we can show a lot more, and in the opinion of the team as well. We always want to create a lot of chances, we want to dominate more.
"It's up to us. We raise the bar, we raise certain standards in what we can do, and that's what we need to do. Only by doing that can you improve and get more results."