Under the NFL collective bargaining agreement, Dixon is free to sign with the Eagles or any other NFL team at any time and doesn't have to wait until the start of free agency March 12.
Dixon is an athletic former Pittsburgh Steelers fifth-round draft pick who signed with the Ravens this season.
His role in Baltimore was on the scout team, imitating athletic quarterbacks like Robert Griffin III and Colin Kaepernick.
"I'm in awe right now," Dixon told The Sun when Kelly was hired. "I'm at a loss for words. I'm sure it was a business decision, a family decision, but it's really hard to leave the Ducks. I think he is ready for that next step."
NOTE: The Ravens have signed running back Lonyae Miller and center Reggie Stephens to their offseason roster after their practice squad contracts expired.