Kai Tak Sports Park would provide an “amazing venue” for a regular-season NFL game, according to one of the masterminds behind the HK$30 billion sporting complex. What began as a novelty initiative when the NFL first staged a game outside the United States, in Mexico 21 years ago, has grown into a global phenomenon. Ten international fixtures are planned for next season, up from nine this year. Roger Goodell, the NFL commissioner, recently raised the prospect of Japan becoming the league’s debut...