(Corvallis, OR)  --  Oregon State will welcome Washington State to Corvallis tomorrow. After battling a hamstring injury throughout training camp, Beavers safety David Morris will be available to play.  Linebacker Addison Gumbs will be unavailable, however, as he rehabs from knee surgery.  On the Cougars' side, they'll get wide receiver Jamire Calvin back after fracturing his foot twice in the same spot.