Derrick Henry's two-year, $16 million contract with the Baltimore Ravens already looks like the best signing of the NFL offseason. When the Ravens signed the 30-year-old Henry, few in the NFL world had qualms: the league's best rushing attack was adding the most dominant running back of the last five years.

The Baltimore running back, who turned 30 in January, credits his production to his work ethic, offseason training and a rigid diet.

Derrick Henry is chugging along, and the Baltimore Ravens are on track following a rough start thanks to a tried-and-true recipe of running the ball early and often.