According to the report, the contract is a one-year, $9.5 million extension, with the total value of the contact worth $20 million through 2019.
The 28-year-old Scandrick had four years remaining on his previous contract, which was a five-year deal worth $15 million with $10 million guaranteed.
Scandrick, who missed the first two weeks of voluntary offseason workouts but reported this week, was set to make $1.5 million in base salary for the 2015 season. His salary this season is now $4 million.
The cornerback has spent all of his seven-year career with Dallas, who selected him in the fifth round of the 2008 NFL draft.
Last season, Scandrick had 55 total tackles with two interceptions, two forced fumbles, and nine passes defended.
- Scooby Axson