Wolves boss Julen Lopetegui believes Matheus Nunes will be the most important factor in their relegation battle.
The midfielder, who signed for a massive 38 million in the summer, has failed to impress so far this season.
The creative star has only one assist to his name and no goals, which is a surprise to many who saw his talent in Portugal.
Asked about Nunes, per Express and Star, Lopetegui said: "It's not easy to make the difference in the Premier League. It's not easy for anyone.
"He's a good player and he has to improve, as do the rest of the players.
"He has a good physical condition and needs to improve on other things. He knows.
"But we are helping him to try to improve and to become a better player.
"Matheus is a very good player who has physical strengths and quality.
"He has to improve a lot of things, as do the rest of the players, but he's trying and working very hard.
"He's young, but in the same way he's played a lot with us and I think he's going to be a key player for us in the next matches."