Chelsea have joined the long queue for 20-year-old striker Haaland’s services with Manchester United and Manchester City also keen.
But German outlet SportBILD claim Werner is not interested in heading back to the Bundesliga as part of any deal with Dortmund.
The 25-year-old has struggled since his £45million move from RB Leipzig in the summer.
The Germany International has scored just one Premier League goal since November – in the 2-0 win over Newcastle on February 15.
He said: “In the moment I don’t see why he should be frustrated. We gave him a little time to breathe against Leeds.
“But right now, I don’t see why he should be too frustrated. And honestly, nobody here is blaming the strikers.
Haaland, meanwhile, has a £66million release clause that comes into effect in 2022 but Dortmund could be open to selling him this summer.
A host of top European clubs including Man City and Real Madrid are expected to scrap for his signature.
“This is a team effort to attack and defend, but we expect our guys to create more chances, to be more decisive because we expect the defenders to play on the highest level and so we also expect that of our strikers.
Yet Chelsea boss Thomas Tuchel was quick to shut down those suggestions that Werner could leave Stamford Bridge as speculation.