Chelsea hopes Christian Pulisic will help the London club expand its U.S. fan base and assist the team's campaign to combat anti-Semitism.

Chelsea bought the 20-year-old midfielder from Borussia Dortmund in January for $73 million, by far a record price for an American player, then loaned him back to the German club for the rest of the season. Pulisic can't play for Chelsea for a May 15 charity exhibition at the New England Revolution dubbed the "Final Whistle on Hate," but will play a role in Chelsea's promotional efforts after he joins in July.

"He's a personable boy. He's well-liked in this country," Chelsea chairman Bruce Buck said during an interview Thursday with The 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."

U.S. star Christian Pulisic's $73 million deal to Chelsea is by far the largest for an American player. TF-Images/Getty Images

Manchester United has the highest average U.S. viewers among Premier League clubs this season at 630,000 on NBC, NBCSN and their digital streams, topping Arsenal (573,000), Liverpool (563,000) Chelsea (534,000), Manchester City (494,000) and Tottenham (477,000). Kickoff times and appearances on the late Saturday NBC match impact audience.