Sources: Broncos still working on trade for Robertson

The Denver Broncos' interest in lame duck Jets defensive tackle Dewayne Robertson is not dead.

Sources told ESPN.com on Monday that the Broncos are still considering trading for Robertson even after they gave him a physical and had some concerns about his knee.

The New York Jets had agreed to send Robertson to Cincinnati on the first weekend of the NFL trading period for fourth- and fifth-round picks but because of a knee issue he didn't pass the Bengals' physical.

Denver has since checked him out. The team was close to trading for him in mid-March but talks stalled when the team suddenly fired general manager Ted Sundquist on March 12. Sundquist was the point man in the talks with the Jets. However, with Sundquist now out of the picture and with Denver still needing a force in the middle of its young front four, it has reconsidered making a deal for Robertson, a talented player who doesn't fit in the Jets' 3-4 scheme.

Still, finalizing a deal will be difficult for Denver, which would make Robertson an anchor of the line. Robertson's contract will have to be restructured and the team has been in on- and off-again talks with his agent, Hadley Engelhard, for several weeks. Robertson is due a $3 million bonus in June and has salary cap number of about $11 million for this season. Thus, Denver would have to redo the deal to make it fiscally worthwhile, especially with the Broncos in a cost-conscious mode this offseason.

Robertson, 26, was the No. 4 overall draft pick in the 2003 draft out of Kentucky. He had 57 tackles for the Jets last season.