(Toronto, Ontario)  --  NBA All-Star Weekend tips off tonight with the Rising Stars Challenge and the NBA All-Star Celebrity Game at the Air Canada Centre.  Blazers guard C.J. McCollum will compete in tomorrow's Skills Challenge.  Saturday night will also feature the Three-Point Contest and the Slam Dunk Contest.  No Blazers are playing in Sunday's All-Star Game.  Damian Lillard is the only player ranked in the top ten in scoring not playing in the All-Star Game.