The Jaguars are expected to place Kirk (groin) on injured reserve Friday, Cameron Wolfe of NFL Network reports.
Per Wolfe, Kirk will require surgery to address a core muscle/groin injury. Once the wideout lands on IR, he would miss at least the next four games, making him ineligible to return to the Jacksonville lineup until Week 18. Kirk's upcoming absence should open up a few extra looks in the passing game for Calvin Ridley, Zay Jones and Evan Engram, while rookie Parker Washington -- who recorded six catches for 61 yards and a touchdown in Monday's 34-31 overtime loss to Cincinnati -- should settle into a regular role in three-receiver sets.