With their training camp set to officially get under way on Friday, the Patriots have placed eight players on the physically unable to perform list, according to The Boston Globe. Wide receivers Troy Brown, Kelley Washington and Chad Jackson; defensive lineman Richard Seymour; rookie running back Justise Hairston; cornerback Eddie Jackson; and safety Mel Mitchell were placed on the list. The contingent counts toward the 80-man roster for training camp and cannot take part in practice until they come off the list.