(Salt Lake City, UT)  --  The Gonzaga men's basketball team is moving on to the second round of the NCAA Tournament, after defeating South Dakota State, 66-46.  The top-seeded Zags pulled away from the 16th-seed Jackrabbits in the second half after leading by four at intermission.  Jordan Matthews scored 16 points to lead Gonzaga, who will play eighth-seed Northwestern at 2:15 tomorrow afternoon.