The Rookie-Sophomore Challenge is no more. The annual wide-open dunkfest pitting first-year players against second-year players will have a different format this year in Orlando, the NBA announced Tuesday. And under the new format, you might see Ricky Rubio throwing lobs to Blake Griffin. The Friday night affair will now be called the BBVA Rising Stars Challenge, and each team will have rookies and sophomores. Each team also will have GMs who will pick from a pool of players selected by NBA assistant