The Arizona Cardinals announced a trio of roster moves heading into the final week of the season. Rookie running back Trey Benson, who has missed the last two games with an ankle injury, will also miss the finale against the San Francisco 49ers. He was placed on injured reserve.

The Cardinals placed rookie running back Trey Benson on injured reserve ahead of Arizona's regular season finale on Sunday against the 49ers.

The Cardinals aren't certain about running back James Conner's availability for Sunday. He exited the Week 17 game after aggravating his knee

Conner, who has a career-high 1,500 scrimmage yards this season, suffered a right knee injury in the second half of the Cardinals’ Week 16 loss to the Panthers, eliminating them from playoff contention. He was not ruled out but spent the remainder of the game on the sidelines in a jacket and did not return.

The Arizona Cardinals placed rookie running back Trey Benson (ankle) on Injured Reserve on Tuesday, so he will not be available to play in the Week 18 regular-season finale on Sunday against the division-rival San Francisco 49ers.