Jim Harbaugh and Pete Carroll go way, way back. Carroll's hiring as the new head man for the Las Vegas Raiders is sure to ignite the rivaly with Harbaugh.

Now that Pete Carroll and Jim Harbaugh are in the same division again, get ready for more amazing battles between two coaches who have always made each other better.

Pete Carroll is turning back the clock and heading to Sin City. The 73-year-old has reached an agreement with the Las Vegas Raiders to become the franchise's next head coach, according to multiple reports. ESPN's Adam Schefter reports that it is a three-year deal with a fourth-year team option.