NFL teams scramble to catch K.C. as free agency begins -- but the Chiefs aren't standing still

Calvin Ridley is heading to the Tennessee Titans, the highlight of the official start of free agency Wednesday when teams began reshaping their rosters in a quest to unseat the two-time defending champion Kansas City Chiefs.

Ridley — who had been expected to re-sign with the Jaguars — and the Titans agreed on a four-year, $92 million contract with $50 million guaranteed, a person with knowledge of the terms told The Associated Press.

Ridley gives young Titans quarterback Will Levis another playmaker. He started all 17 games for the Jaguars last season and finished with 76 receptions for 1,016 yards and eight touchdowns. Ridley, however, hasn't always been so reliable. He missed most of the previous two years because of a broken foot, a mental health break and a yearlong gambling suspension.

The Titans also added a veteran quarterback, agreeing with Mason Rudolph on a one-year contract, another person familiar with the decision told the AP.