Why would the Broncos claim ex-Seahawks wide receiver Cameron Kenney off waivers, as they did Wednesday?
The answer lies in the slight injuries that hit the Broncos during their practice earlier in the afternoon, with three receivers -- Eric Decker, Greg Orton and D'Andre Goodwin -- all coming up lame with injuries.
Decker was sidelined by a groin strain that kept him from taking part in seven-on-seven, one-on-one and team periods of practice. Orton and Goodwin left with ankle injuries. Goodwin's appeared to be the most serious when it happened; he was treated on the field after failing to catch a pass from Caleb Hanie in the two-minute period, but was putting weight on his leg as he was helped from the field.
Running back Ronnie Hillman also left Wednesday's practice early with a hamstring injury.
Kenney is the second player added to the roster since training camp. Safety Kendrick Perkins, who had an interception of Hanie during Wednesday's work, was signed Saturday after strong safety Quinton Carter pulled a hamstring. 
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