Bentley was delisted by Port Adelaide at the end of 2008 after twenty-one games with the club. He was drafted as a rookie by the Carlton with its third selection (#37 overall) in the 2009 AFL rookie draft. He made his Carlton debut in Round 6, and played five games for the season, before being delisted at the end of the season.
Bentley made a return to local football in 2010 returning to his old home club, Rosebud, in the Mornington Peninsula Nepean Football League, and in 2011 he was the joint-winner of the George Osborne Medal as the Nepean division best and fairest.[1]