(Seattle, WA)  --  The Seahawks' big free-agent addition is expected to debut this weekend. Head coach Pete Carroll said he expects Ziggy Ansah to be ready to go against the Saints.  The Pro Bowl defensive end had offseason shoulder surgery and missed the first two games.  The 'Hawks will be home Sunday against New Orleans, which will be without Drew Brees, who will miss the next six weeks following surgery on his thumb.