CARLTON has landed three more Giants in a pair of last-minute trades.

The Blues bolstered their developing list by snaring Greater Western Sydney key defender Caleb Marchbank, small forward Jarrod Pickett and, in a separate deal, experienced mid-sized forward Rhys Palmer.

Remarkably, the Blues secured 122-gamer Palmer with round-eight draft pick No.135 in November's NAB AFL Draft.

The Blues claimed youngsters Marchbank and Pickett, along with the Giants' 2017 second-round selection, in exchange for picks No.45 and 58, and their 2017 first-round pick.

The major prize was promising backman Marchbank, the No.6 pick in the 2014 draft who played seven games in two seasons with the Giants.

The 19-year-old from Benalla played the opening two games this year but didn't return to AFL level due to ankle and shoulder injuries. His most recent game was in the NEAFL in round 16.

The lively Pickett, 20, is yet to make his AFL debut after two years at the Giants, and his 2016 season was ruined by a long-term foot injury.

Fellow West Australian Palmer, 27, lands at his third club, having played 53 games for Fremantle from 2008-11 and 69 games for the Giants.

The hard-working left-footer, who won 2008 NAB AFL Rising Star award, made just 11 appearances in the Giants' star-studded line-up this year, but returned for the preliminary final loss to the Western Bulldogs – his only finals appearance.