Joey Porter missed the first week of the Steelers' voluntary workouts, and now the question is whether he will participate in any of them. Porter attended the team's mandatory three-day minicamp May 13-15 but was the only veteran absent from all four of their follow-up voluntary sessions last week. Those sessions, among 14 scheduled through June 8, resume today. His agent, Jeff Sperbeck, declined to comment yesterday on whether Porter will return to Pittsburgh to work out with his teammates or if he planned to show up for the start of training camp July 28. "The Steelers are aware of Joey's situation," Sperbeck said