Article Photos: Steelers rookie tackle Beachum learning on the fly 1/1

FILE - This Sunday, Dec. 9, 2012 file photo shows Pittsburgh Steelers tackle Kelvin Beachum (68) blocking San Diego Chargers defensive end Kendall Reyes (91) in the first half of their NFL football game in Pittsburgh. Beachum will make his third straight start on Sunday, Dec. 16, 2012 in Dallas. Beachum made the Steelers after being drafted in the seventh round of the 2012 Draft and has played solidly as an emergency sub after Marcus Gilbert and Mike Adams went down with injuries. (AP Photo/Don Wright)FiILE