King, originally signed by the club as an undrafted free agent in 2012, has spent his first six years with the Raiders. Over his six-year career, he has played in 80 games, recorded 426 punts for 19,941 yards (46.8 avg.) and pinned opponents inside the 20-yard line 156 times with 33 touchbacks.
Walford, originally drafted by the club in the third round of the 2015 NFL Draft, totaled 44 games played with 10 starts as a Raider. Over his three-year career with the team, Walford made 70 receptions for 768 yards (11.0 avg.) and added six touchdowns.