After suffering injury setbacks and, by his own admission, a lack of application,[2] he was delisted at the end of 2007 without playing a senior game.
Pfeiffer was a late inclusion into the Carlton team for round 9 against Fremantle at the Telstra Dome.
He underwent a shoulder reconstruction earlier in the year and registering only his first senior game for Carlton's VFL-affiliate, the Northern Bullants, in round 17 before going on to be a member of their losing Grand Final side.
Pfeiffer played sixteen games for Port Adelaide in 2012, but further injuries hampered his 2013 season, and he was delisted at the end of the year, having undergone a total of four shoulder reconstructions in his AFL career.
[6] In October 2014, Pfeiffer accepted a one-year contract for season 2015 as senior coach of the University of Queensland Australian Football Club QAFL side.