The Steelers have lost starting OT Willie Colon for the 2010 season.  He tore his ACL at practice earlier today and he will soon have surgery to repair it.  The 27-year old Colon played in 16 games (all starts) for the Steelers last season.  In his four years with the Steelers he has played in 50 games (all starts).  This is a huge blow to the Steelers’ offense as Colon was the best lineman on their team last season.