The Jacksonville Jaguars decided to place linebacker Myles Jack on injured reserve Thursday, according to NFL Network's Ian Rapoport.
Jack is nursing a knee injury and missed Jacksonville's 28-11 loss to Tampa Bay last week because of it.
Jack has developed into a key cog in the middle of the Jacksonville defense. After a breakout year in 2017, he put together his most complete season to date in 2018 when he racked up 107 total tackles, 2.5 sacks, a forced fumble and an interception he returned for a touchdown.