(Carson, CA)  --  The Seahawks are on the road this weekend as they take on the Chargers in the third week of the preseason.  The Hawks are hoping to regain momentum after falling to the Vikings 25-19 Sunday.  Seahawks rookie receiver DK Metcalf is listed as 'doubtful' but will likely not play as he's due for knee surgery.  Coach Pete Carroll expressed optimism that the rising star won't be sidelined for long.