While Jeff Duckworth has secured the spot as the No. 3 receiver, it hasn't meant significant playing time.
He has five receptions for 48 yards, but three of those came against Indiana, when he started because Nick Toon was out with a foot injury.
Duckworth has not caught more than one pass in any other game and got on the field for just a handful of snaps against Michigan State last week.
The favored formations have included the traditional two backs and one tight end, or one back and two tight ends. Both formations include just two receivers, Toon and Jared Abbrederis.
"Nick and Abby are very good," UW coach Bret Bielema said. "It's hard to take them off the field or justify that."
Duckworth, a third-year sophomore, has limited speed but brings dependability to the spot. He's got a solid grasp of the offense and runs good routes.
"Especially the way we're running the ball, too, we don't get in a lot of third-and-longs where we need three wides," Duckworth said. "You have to find your spot here or there, where Nick or Jared needs a break, and you've got to capitalize on your limited opportunities."