The Arizona Cardinals, who began practice on Wednesday preparing for the Atlanta Falcons, announced a number of roster moves, placing a pair of players on injured reserve and making a number of signings to the active roster and the practice squad.
Baker suffered a fractured shoulder and Hill a knee injury against the Tampa Bay Buccaneers on Sunday.
They will not return this season.
Cooper and Jones were signed to the active roster from the practice squad. Cooper will likely handle return duties for the final two games. Jones is an undrafted rookie out of Colorado.
He has played in two games this season and has two tackles.
The final two moves were for the practice squad. Cornerback Nate Hairston was placed on the practice squad injured reserve.
Offensive lineman Lachavious Simmons, who has been on the practice squad injured reserve since October 5. He is now able to practice with the team.