Rookie tight end Brandon Pettigrew had a quadriceps muscle tighten up during today’s afternoon training camp session. Coach Jim Schwartz said it was nothing serious.
   Ephraim Salaam practiced in the morning, but not the afternoon. Schwartz said the veteran tackle is on a one-practice-per-day schedule.
 Wide receiver Adam Jennings who missed the morning session for personal reasons, participated in the afternoon.
  Wide receiver Calvin Johnson wowed the crowd of season ticket-holders in the afternoon with a few long receptions and a touchdown catch in a red zone drill. Read more about Johnson in Monday’s Oakland Press.
— PAULA PASCHE