Casserly expects Merriman to be first player to get subpoena for Congress

In his weekly segment on the CBS pregame show, former Redskins and Texans G.M. Charley Casserly buried the lede, in a big way. At the tail end of an update regarding the issue of HGH testing, Casserly dropped a bombshell.  If the NFLPA forces Congress to conduct hearings aimed at forcing HGH testing, Congress will…