(Renton, WA)  --  Seattle Seahawks defensive tackle Jesse Williams is scheduled to undergo kidney surgery, after being diagnosed with papillary type 2 cancer.  The Seahawks haven't released any further details.  Williams, who's a reserve lineman, says he's going to focus on his health and fighting the battle with a return to football as his ultimate goal.  Williams is entering his third NFL season after playing his college ball at Alabama.