Cardinals' Alani Fua: Headed to IR

Fua has been placed on the IR due to a knee injury, Darren Urban of AZCardinals.com reports.

Analysis:

Fua dealt with a knee injury during the early portion of the preseason, but may have suffered a setback resulting in his IR designation. The Cardinals signed Joplo Bartu to provide additional depth at inside linebacker with the open roster spot.