''I don't see it happening,'' Mackler told The Journal Newspapers. ''The Redskins are in the hunt, but he's going to probably be someplace else.''
Barber is scheduled to visit Cleveland on Sunday, though the Browns already appear set at outside linebacker with Dwayne Rudd and Jamir Miller. Browns defensive coordinator Foge Fazio coached Barber for one season in Washington. Barber will visit the Giants on Monday.
Mackler said four other teams are interested in Barber. He'll likely visit one of those teams next week.
Barber, who continues to work out at Redskin Park, is adament in his desire to return, even though Washington has signed Jessie Armstead.
''This is where I want to be,'' he said. ''Everyone is proceeding as if I'll be here. But you wait for free agency so you want to see what other people think you're worth.''
But until the Redskins reciprocate, it's more and more likely that his wishes won't be granted.
If Barber leaves, he'd be the third Redskins veteran to bolt via free agency. Kenard Lang (Cleveland) and Cory Raymer (San Diego) already have left.
Of course, the Redskins feel Barber is too expensive for them. At least now. But with other teams interested, they might not have a chance to see if his price decreases.
John Keim covers the Redskins for The Journal Newspapers.