The Packers were back on Ray Nitschke Field for the first of the final three training camp practices on Sunday.  The team must reduce the roster to 80 players by Tuesday afternoon and the first three cuts were made over the weekend, including a pair of veterans.  Tight end Spencer Havner and wide receiver Brett Swain were let go, along with free agent rookie offensive tackle Ray Sherman.  Both Havner and Swain were nicked up at times during camp but clearly, the depth at both of their positions did them in.  7th round pick Ryan Taylor showed up big in Indianapolis with the late touchdown catch and two point coversion plus he's been involved in nearly every special teams unit, the exact role Havner played.  Free agents Chastin West and Tori Gurley roared past Swain on the depth chart while he rehabbed his pulled hamstring throughout all of camp.  James Jones left practice early with a slight knee sprain and Jordy Nelson and Jermichael Finley were spectators after suffering minor injuries in Indianapolis.   Randall Cobb and Shaky Smithson returned to the wide receiver corps today.  Mason Crosby is understandably swinging a confident leg, after his game winning 50 yarder against the Colts.  In the field goal period today, Crosby drilled all 6 attempts and the last two covered 53 and 56 yards.   There were plenty of picks for the defense, Morgan Burnett, Jarett Bush, Charles Woodson, AJ Hawk and Sam Shields all came up with interceptions during team periods.  Shields intercepted the one and only play in the final period of practice, a 2 minute drill.