(Tucson, AZ)  --  The Ducks clash with 15th-ranked Arizona tonight in Pac-12 action at the McKale Center.  Oregon is 16-and-4, with a 5-and-2 mark in conference play.  Oregon will visit Arizona State on Sunday.  The Wildcats are also 16-and-4, with a 4-and-3 mark in the Pac-12.