The Jaguars (4-10) signed rookie centre Patrick Lewis off Cleveland's practice squad and promoted guard Drew Nowak to the 53-man roster. They also signed defensive end D'Aundre Reed to the practice squad.
Shorts (groin) and Rackley (concussion) missed Sunday's loss to Buffalo. Shorts has dealt with a groin injury much of the year and will have surgery soon. Rackley sustained a concussion Oct. 27 against San Francisco and was inactive for two games. He returned to the lineup and started three games before feeling concussion symptoms again Saturday.
Shorts finished with 66 receptions for 777 yards and three touchdowns this season.