The Arizona Cardinals have seen their 2017 NFL season continue to go south after injuries to key players on the roster namely Pro Bowlers quarterback Carson Palmer and David Johnson both being on the injured reserve list.

According to Darren Urban of the team website, head coach Bruce Arians doesn't envision either player being removed from the list and activated back onto the roster in the second half of the season.

Johnson had been eligible to begin practicing back on Oct. 24 and come off the injured reserve on Nov. 7. In order for him to make a return, he would have to start practicing for two weeks before he can play in a game.

There had already been the notion out there that Johnson would miss the remainder of the season due to the wrist injury taking a bit longer for him to recover than he had anticipated. In his absence, the Cardinals have acquired former Pro Bowl running back Adrian Peterson from the New Orleans Saints, and he has held down the primary duties in the running game for the last five contests.

Meanwhile, Palmer is still recovering from a broken arm that he suffered against the Los Angeles Rams in Week 7. He is eligible to make his return for the final couple of weeks of the season, but these comments from Arians make it sound unlikely.

On top of that, if the Cardinals are out of the playoffs, it would hard to believe that they bring him back to play in that scenario. All of this has the shaping up of Arizona taking the precautionary route and sitting both Palmer and Johnson out for the remainder of the year.