Reports in the German press earlier this week claimed that the Blaugrana had agreed a €35m deal with the Bundesliga side for the centre-back.
But the coach has insisted the stories are nonsense.
“Speculation is normal in football, that doesn't bother me,” he told reporters.
“Interest in our players is a good sign. That's not the issue here.
“I'm sure that Hummels has a lot of admirers, but spreading the rumour that we've agreed a price, now that annoys me.
“There was no need, especially when it's not true.”
- Sports & Recreation