AP

The Ravens opened up a hole on their defensive line this week when they shipped defensive tackle Haloti Ngata to Detroit for draft picks and they may try to fill it with one of the top free agents left on the market.

Aaron Wilson of the Baltimore Sun reports that the Ravens have interest in Terrance Knighton, whose only known visit of free agency was to the nearby Redskins. Knighton ranks at No. 21 on PFT’s list of the top free agents this year and he’s one of only four players in our Top 21 without agreement on a deal yet this offseason.

No visit has been set up with the Ravens and Wilson adds that “there’s some concern” that Knighton’s salary demands will be too high for the Ravens’ blood. Knighton’s market doesn’t seem to have set up as he might have hoped, though, and the more spots that close off to him make it more likely that he’ll have to revisit his valuation.

The Seahawks and Patriots also reportedly have interest in Knighton and they also seem unlikely to pay top of the market prices for Pot Roast. Unless Washington’s planning to spend more after signing Stephen Paea and Ricky Jean Francois, Knighton may be left choosing which winning team he wants to play for at a lower salary than he expected.