Riewoldt has not trimmed down ahead of the 2016 season like other forwards, including his cousin Nick at St Kilda, but he was prepared for a season of extended running because of reduced rotations.
He made a brilliant start to his NAB Challenge campaign against Hawthorn last weekend with 10 marks and 17 possessions and will play in the club's final pre-season game against Port Adelaide on Friday night at Etihad Stadium.
"I know that I've got a really big job to do this year for the football club to improve again and get to where we want to go," he said.
Source: AFL website