(Seattle, WA)  --  The Seahawks take on the 49ers in a NFC West battle at CenturyLink Field on Sunday.  Seattle sits atop the division at 5-and-1, even after its first loss of the season to divisional rival Arizona.  The Seahawks are first in the league in yards per game and points per game behind Russell Wilson's 22 touchdowns.  San Francisco is 4-and-3.