The Panthers are signing Irwin to the practice squad Tuesday and plan to elevate him to the 53-man roster shortly, Ian Rapoport of NFL Network reports.
Irwin was waived by the Bengals on Monday, Adam Schefter of ESPN reports.
Irwin (coach's decision) is inactive for Sunday's matchup against Pittsburgh.
Irwin (coach's decision) is inactive for Sunday's game against the Ravens.
Irwin (coach's decision) is inactive for Monday night's game against the Commanders.
Irwin caught one of his two targets for six yards in Sunday's 16-10 loss to the Patriots.
Irwin is competing with Andrei Iosivas and Charlie Jones for the the No. 3 receiver spot as the Bengals' preseason opener approaches,Geoff Hobson of the team's official site reports.
Irwin has agreed to a one-year deal to remain with the Bengals, Ian Rapoport of NFL Network reports.
Irwin had two catches for 34 yards in the Bengals' Week 18 win over the Browns. He finished the season with 25 catches for 316 yards and a touchdown.
Irwin caught one of the two targets for four yards in Sunday's 25-17 loss to the Chiefs.