PHILADELPHIA (973espn.com) — Although the main focus of the NFL's offseason has shifted from free agency to the draft, Howie Roseman has no problem peering into the bargain bin to see if there is anything of interest.

It's with that mindset that the Eagles hosted veteran free agent offensive lineman Stefen Wisniewski on Thursday, according to NFL Media.

On the surface it's a very good fit if Wisniewski has anything left in the tank because he has the ability to play both center and left guard, a versatility that Philadelphia no doubt finds very intriguing.

Jason Kelce's backup in the pivot, David Molk, has already retired after losing most of last season to injury and the left guard spot is up for grabs as the pedestrian Allen Barbre tries to told off Andrew Gardner, Malcolm Bunche and a potential draft choice.

Wisniewski has played most of his NFL career at center after being selected by the Oakland Raiders in the second round of the 2011 NFL Draft out of Penn State. He spent his rookie year starting at left guard, however, before moving inside. Overall, he started 61 of a potential 64 games during four seasons in Oakland over before signing a one-year deal with Jacksonville in free agency last year.

He started all 16 games at center for the Jags in 2015 and of the 39 players rated at the position by ProFootballFocus.com, Wisniewski finished middle of the pack at No. 19.

In Philadelphia he could compete for the starting position at LG and serve as a very competent backup for Kelce.

-John McMullen covers the Eagles and the NFL for 973ESPN.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen

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