Russell Okung is making a free-agent visit to the Denver Broncos, according to ESPN's Josina Anderson. Okung has met previously with the New York Giants, Detroit Lions and Pittsburgh Steelers. With Kelvin Beachum (Jacksonville) and Donald Penn (Oakland) off the market, Okung is clearly the top left tackle remaining on the market. The Seahawks have signed J'Marcus Webb and Bradley Sowell, but have yet to find a true starting left tackle.