The Jaguars signed Aguilar to the practice squad Monday.
The Jaguars waived Aguilar during Sunday's cutdown day. The quarterback played in all three preseason games, completing 17 of his 20 pass attempts for 230 yards and a touchdown. The 25-year-old cleared waivers and will now compete with Nick Mullens on the practice squad for a chance to be elevated to the active roster if Trevor Lawrence or Quinn Ewers suffers an injury.