St.Kilda's Sam Fisher, right, competes with Geelong's Mitch Duncan.

St Kilda's Sam Fisher (right) competes with Geelong's Mitch Duncan. Photo: Sebastian Costanzo

Greater Western Sydney has shown strong interest in recruiting St Kilda defender Sam Fisher, who has been approached by the Giants about a possible move.

The Saints are aware of the Giants' interest in Fisher, who is under contract to the Saints for next year. St Kilda says it has not discussed potentially trading the decorated defender at this stage.

Fisher is set to be paid $400,000-plus in 2014, but managed only nine games this year due to injury. The 31-year-old has a relationship with GWS list manager Stephen Silvagni stemming from Silvagni's time as a defensive coach under former Saints coach Ross Lyon.

The approach to Fisher follows North Melbourne's potential play for St Kilda star midfielder Nick Dal Santo, who is technically out of contract but can activate an automatic extension of a lucrative deal, if he chooses, or seek a move via free agency.

The Saints are clearly mindful of the opportunity to regenerate their list by gaining draft picks or young players in return for veterans. But their stance on Fisher is likely to hinge on whether the All-Australian and dual best and fairest wants to move. GWS could well offer him a longer contract.

The Fisher situation coincides with a strong bid by the Saints to recruit GWS tall defender Josh Bruce who has indicated he wants to be traded to St Kilda. Bruce, who played 11 games for the Giants this year as a tall defender, is clearly the type of player the Saints are seeking.

The Saints are also making a play for North Melbourne's Luke Delaney and have offered him a three-year deal.

St Kilda is keen to shore up the key defensive positions where they have been exploited over the past two seasons.

The Giants and Saints are said to be among the most active clubs in the upcoming trade period with GWS obviously making an aggressive attempt for Hawthorn superstar Lance Franklin, whose decision on whether to stay or take up the Giants' offer has been put on hold until Hawthorn's season ends.

GWS also is in the market for a mature ruckman having shown some interest in Sydney's Shane Mumford and Essendon's Tom Bellchambers.