The Tennessee Titans are signing running back Derrick Henry to a four-year, $50 million contract extension, and now details are beginning to emerge on the specifics of the deal.

According to Mike Florio of Pro Football Talk, Henry will earn $25.5 million in guaranteed money over the next two years. That will come in the form of a $12.5 million signing bonus, a $3 million fully guaranteed base salary for 2020 and a $10.5 million fully guaranteed base salary for 2021.

As for 2022 and 2023, Henry is slated to earn $12 million and $12.5 million, respectively, although neither of those years are guaranteed.

The Titans slapped a franchise tag on Henry back in March. Had the two sides not reached a long-term agreement before the Wednesday deadline, Henry would have made $10.278 million this coming season. If Tennessee then decided to place a franchise tag on him again for 2021, Henry would have collected $22.6 million in total over the next two seasons.

So, clearly, things worked out pretty well for the halfback, especially in a modern NFL where players at Henry's position are not valued nearly as much as they once were.

Henry is coming off of a monster 2019-20 campaign in which he led the league in both rushing yards (1,540) and rushing touchdowns (16) while averaging a hefty 5.1 yards per carry en route to his first Pro Bowl appearance.

On top of that, the 26-year-old racked up 446 yards and a couple of scores in three playoff games this past season.

Henry, who played his collegiate football at the University of Alabama, was originally selected by the Titans in the second round (45th pick overall) of the 2016 NFL Draft.