Color photo of University of Oregon linebacker Danny Mattingly (#46) clutching the ball on the bottom of the pile after intercepting a pass during the College Football Playoff championship game against Ohio State on January 12, 2015 at AT&T Stadium in Arlington, Texas. The Ducks lost the game 20-42. Also pictured are Chris Seisay (#12), Troy Hill (#13) and Joe Walker (#35).
Color photo of University of Oregon linebackers Joe Walker (#35) and Justin Hollins (#11) tackling a ball carrier during the Pac-12 championship football game against Arizona on December 5, 2014 at Levi's Stadium in Santa Clara, California. The Ducks won the game 51-13. Also pictured is Derrick Malone Jr. (#22).
Color photo of University of Oregon linebacker Joe Walker (#35) attempting to get at a ball carrier during a football game against Washington on October 17, 2015 at Husky Stadium in Seattle. Walker was able to make the tackle and the Ducks won the game 26-20.
Color photo of University of Oregon linebacker Joe Walker (#35) tackling a ball carrier during the Pac-12 championship football game against Arizona on December 5, 2014 at Levi's Stadium in Santa Clara, California. The Ducks won the game 51-13.
Color photo of University of Oregon linebackers Joe Walker (#35) and Tyson Coleman (#33) tackling a ball carrier during the College Football Playoff championship game against Ohio State on January 12, 2015 at AT&T Stadium in Arlington, Texas. The Ducks lost the game 20-42.
Color photo of University of Oregon defensive lineman DeForest Buckner (#44) tackling a ball carrier during the College Football Playoff championship game against Ohio State on January 12, 2015 at AT&T Stadium in Arlington, Texas. The Ducks lost the game 20-42. Also pictured are Arik Armstead (#9), Joe Walker (#35) and Chris Seisay (#12).
Color photo of University of Oregon linebacker Joe Walker (#35) ready for the start of a play during a football game against Washington on October 17, 2015 at Husky Stadium in Seattle. The Ducks won the game 26-20.
Color photo of members of the University of Oregon defense as they wait for the next play during a football game against Stanford on November 14, 2015 at Stanford Stadium in Stanford, California. The Ducks won the game 38-36. From left to right are DeForest Buckner (#44), Rex Manu (#47), Alex Balducci (#56), Torrodney Prevot (#86), Rodney Hardrick (#48), Austin Maloata (#50), Henry Mondeaux (#92) and Joe Walker (#35).
Color photo of University of Oregon defensive lineman Henry Mondeaux (#92) tackling a ball carrier during a football game against California on October 24, 2014 at Levi's Stadium in Santa Clara, California. The Ducks won the game 59-41. Also pictured is Joe Walker (#35).
Color photo of University of Oregon football player Joe Walker (#35) stretching before a game against Stanford on November 14, 2015 at Stanford Stadium in Stanford, California. The Ducks won the game 38-36.