U.S. sports teams are clamoring for sponsorship deals with British bookmaker William Hill as legal sports betting starts to take off in the United States, the chief executive of the company’s American division told Reuters on Wednesday. Since the U.S. Supreme Court issued a ruling in May that flung open the doors to legal sports wagering across the country, the company has been “inundated” with emails and phone calls from teams looking to do sponsorship deals, said Joseph Asher, CEO of William Hill U.S. Asher’s remarks come as sports betting gets set to expand nationwide in states that agree to…