Carson Palmer said he thinks “every second of every day” about trying to come back and play this season for the Cardinals. The quarterback, speaking publicly Saturday for the first time since he broke his left arm against the Rams in London Oct. 22, said he has talked to running backs David Johnson and T.J. Logan about having a casted arm and dealing with the loss of muscle and hand strength. The idea is that he could return from injured reserve, although the earliest he could play would be the Dec. 24 home game against the Giants. “I could potentially be available the last two weeks of the season,” Palmer said during an autograph appearance at the Cox Communications Store at Tempe Marketplace. “Who knows? I don’t know where I’ll be (with rehab) at that point. I don’t know where we will be as a team at that point. I just try to be as ready as I can as quick as I can.” The uncertainty stretches to his future and the 2018 season as well. Palmer is under contract for next season, although retirement could be an option. “I haven’t even gotten there yet,” Palmer said. “Just as far as what I’ve been doing the last couple of weeks, I’ve had numerous doctors appointments, tried on different braces and casts. That’s what my mindset has been. I’ll have a chance to think about what is next as far as 2018 and all that once we get through this year.” Palmer’s contract runs through 2018. He is due $12.5 million in salary next year with a $1.5M roster bonus, both of which are guaranteed five days after the Super Bowl.