The Green Bay Packers had only four healthy outside linebackers at their final public Training Camp practice on Tuesday. Clay Matthews is reported to have a tight groin — and he was out along with Nick Perry with a bad ankle, Jayrone Elliott with a back issue, and rookie Vince Biegel as he recovers from foot surgery. Starting safety Ha Ha Clinton Dix also missed practice with knee pain suffered in pregame warmups last Saturday — and defensive lineman Dean Lowry and corner Davon House both returned Tuesday after injuries. Meanwhile, receivers Jordy Nelson and Jeff Janis swapped numbers at practice with Nelson taking 83 and Janis 87. Janis said it was a stunt to fool the fans who were at the team’s final open workout.