Griffin was injured during the play-offs in January and had surgery on his ACL. Andrews has been saying throughout the off-season that Griffin is ahead of schedule and should be ready for the start of the season.
Griffin participated in off-season workouts, has been running at full speed and cutting, and consistently saying his knee feels great.
If Andrews is not satisfied with how Griffin's knee responds, the Redskins could place him on the physically-unable-to-perform list. Kirk Cousins is next on the Redskins' depth chart at quarterback.
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The Miami Dolphins placed rookie defensive end Dion Jordan on the non football injury list. Jordan, the No. 3 overall pick in the April draft, is sitting out the start of training camp because his surgically repaired right shoulder is not fully healed.
Jordan watched the first practice on Sunday from the sideline. It is not clear how long he will be out.
He can join the active roster any time before the regular season. If he is not activated by then, he must remain out for the first six weeks of the season.
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The Dallas Cowboys signed quarter-back Alex Tanney to add depth behind starter Tony Romo.
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Linebacker Barkevious Mingo signed a four-year deal with a fifth-year club option with the Cleveland Browns. Financial terms were not disclosed.
The 6-foot-4, 240-pound Mingo was the sixth overall pick out of LSU, where he had 15 sacks, 11 passes defensed, four forced fumbles and three fumble recoveries in 40 career games with 15 starts.
The Browns want Mingo to start on the right side with Paul Kruger on the left and pressure the quarterback relentlessly.