Chelsea chairman Bruce Buck hopes the arrival of Christian Pulisic will lift their profile in the US.
The American star joins Chelsea properly in the summer after signing a deal in January and being loaned back to Dortmund.
And Chelsea chairman Buck is hoping for a big impact on and off the pitch.
"He's a personable boy. He's well-liked in this country," Buck told Associated Press.
"So, of course I would expect him when we come here and play some friendly matches, which is what our objective is in the summer of 2020. Then yes, I think he will he will be helpful."