Free agency begins this week, but the top player the Eagles should target won't technically be on the open market when the clock strikes 4 p.m. Tuesday.

But he will be available, and he will make more of a difference than any of the hundreds of free agents looking for jobs in two days.

Darrelle Revis is on the trading block, and the Eagles should do whatever is takes to acquire the New York Jets cornerback. They have the draft picks; the salary-cap space; and, most important, a glaring hole in the secondary that makes dealing for the all-pro a no-brainer.

There's already a rumor brewing in certain NFL circles that Eagles general manager Howie Roseman has been crunching the numbers and putting together an offer to bring the 27-year-old Revis to Philadelphia.

Others around the league aren't buying it. Why would Roseman give up a high draft pick, probably another next year, and sink at least $12 million a season into a player who is only six months removed from tearing the anterior cruciate ligament in his left knee?

And then there's the been-there, screwed-that-up argument after the Eagles signed Nnamdi Asomugha two years ago, a disaster that could ward off any team from acquiring high-priced cornerbacks.

But Revis is not Asomugha. He's two years younger than Asomugha was when the Eagles signed him in July 2011. He's more versatile. And he's much better.

Before his reputation was tarnished in Philly, Asomugha was one of four or five cornerbacks considered to be the best at what he does.