return to the side in Round 4 kicking only two goals against the Saints, it was clear Tredrea was still being hampered by the knee and with the notable exception of his four-goal game against Essendon in Round 9 and the 16 mark and three goal game against Hawthorn in Round 11, his overall performances were mediocre by his usual lofty standards. When it became obvious in Round 15 after only kicking one goal against Geelong and with the Power looking like not making the finals, Tredrea had surgery on his knee early with the intention of having him fully fit before 2007. Despite undergoing knee surgery in August 2006, Tredrea's recovery was a slow one, robbing him of vital preseason training, "I started running (after knee surgery) at Christmas, my team-mates were breaking personal bests in 3 km time trials and I wasn't even running," he said. Tredrea finally made his long-awaited return to competitive football with a seven-goal performance for the Port Adelaide in the SANFL in April, however his inconsistent form since returning to the Power was the source of much conjecture and speculation. In Round 12 2007, Tredrea played his 200th senior appearance for the club against the team he first played against, Essendon and in doing so became the first Port player to reach that milestone in the club's AFL era. Prior to the occasion Port Adelaide coach Mark Williams declared, "Tredders will go down in history, certainly in his first 200 games anyway, as the best player that's ever played for the club". In an auspicious return to form Tredrea booted four goals in the Power's 31-point victory over Essendon at AAMI Stadium. In Round 16, after kicking three goals against Richmond he bruised his bone and ended up missing a month of football before returning in Round 20 against Hawthorn in Tasmania. In the Qualifying Final against West Coast, he helped Port win the game with an excellent check side goal and a Shepherd to give them the three-point win. In the 2007 Grand Final Tredrea was one of Port's few good players, kicking two goals in Port Adelaide's record Grand Final defeat to Geelong. In December 2007, after much speculation, Tredrea re-signed with the Power for a further year. After speculation he would not be reappointed due to lingering doubts over his durability and longevity, Tredrea was reappointed as club captain for