Jim Harbaugh not worried about his future

San Francisco 49ers coach Jim Harbaugh has insisted that he is not worried about his future at the franchise with just one year remaining on his current contract.

Speculation has suggested that Harbaugh could be used as trade bait by the franchise hierarchy if the 49ers miss out on the post-season this year.

"I really, I don't worry about my future," Harbaugh told the media.

"I haven't participated in any of that speculation. I just, I think I have a recessive gene for worrying about my own future."

San Francisco face the Oakland Raiders on Sunday, just one of several teams that Harbaugh has previously been linked with by the media.