What happened: The Arizona Cardinals signed rookie quarterback Joey Aguilar off the Jacksonville Jaguars' practice squad on Tuesday. Aguilar was added directly to Arizona's active 53-man roster.

Why it matters: NFL rules require players signed off an opponent's practice squad to remain on the 53-man active roster for at least three weeks. The transaction provides Arizona with immediate developmental quarterback depth while ending Aguilar's stint in Jacksonville.

What to watch: Aguilar joins the Cardinals ahead of Week 11 preparations as the team integrates him into the offense.