Canadian Prime Minister Mark Carney on Thursday challenged President Trump to make a friendly wager on the outcome of the World Series between the Toronto Blue Jays and Los Angeles Dodgers. But Mr. Carney said Mr. Trump hasn’t returned his call yet on the potential bet. “I think he’s afraid, I think he’s afraid to make a bet,” Mr. Carney joked to The Associated Press while taking in batting practice at Toronto’s Rogers Centre a day before Game 1 of the World Series in Toronto. “He doesn’t like to lose. He hasn’t called. He hasn’t returned my call yet on...