Diego Costa says he'll be stronger for his debut with Wolves.
Costa featured in the 3-0 defeat at former club Chelsea last week.
He said, "It felt good. I am finding my rhythm now. I am training hard and looking after myself a lot more than before to be able to play at the best possible level.
“Every day I'm feeling better. I hope that I can play in the next game and play well. The next game is where the league starts for us.
“We knew that Chelsea, with the players they have, were the favourites to win. They're in a different league to us, but our next game is a must-win. We need to try and get a good run going."
On Bruno Lage's sacking, Costa added: “I hadn't been with him [Lage] for long but he's an amazing person and everybody says that about him. I'm grateful to him for bringing me here.
“I didn't really work with him much because we had some bad results and you know what happens in football. It was the club's decision but we were all quite upset because we really liked him.
"It was a big shame, but that is life, and we have to keep moving forward. We have to turn the page now and get out of this situation that we find ourselves in. That's our objective."