Jones agrees to four-year deal as Seahawks bolster backfield

The Seahawks reached an agreement in principle Friday night with former Cowboys running back Julius Jones, the second running back move made by the team this week.

Jones agreed to a four-year deal worth around $3 million a year. The contract is similar to the five-year, $14 million contract reached with halfback T.J. Duckett earlier this week.

With Jones and Duckett on Seattle's roster entering the season, the question is whether or not Shaun Alexander will be around. The Seahawks decided to keep Alexander until they found replacements and now they have two potential replacements.

Jones is expected to compete for the starting job. Duckett was signed to be a short-yardage back as well as a backup fullback and power back. Jones is considered a more elusive back than Duckett.

Jones' final two choices were Seattle and Detroit, although he had interest from the Bears and Eagles for potential visits next week. He had also visited with the Tennessee Titans.

Senior writer John Clayton covers the NFL for ESPN.com.