The Panthers placed Darnold (shoulder) on injured reserve Friday.
Darnold is expected to be sidelined for the next 4-to-6 weeks with a partial non-displaced fracture of his right scapula, so it was only a matter of time before he landed on injured reserve. P.J. Walker is poised to take over at quarterback for the Panthers on Sunday in Arizona, but Cam Newton inked a $6 million deal Thursday and is set to handle starting duties once he's settled in with more practice reps.