GWS have confirmed the signature of delisted Collingwood tall Lachlan Keeffe.

The 27-year-old has not played a game of AFL football since round 23, 2014, and missed the 2015 and 2016 campaigns after a two-year drug ban.

Keeffe was reinstated to Collingwood's rookie list this season, but failed to play a senior game.

โ€œWeโ€™re excited to have Lachie join us for the upcoming season,โ€ said GWS' General Manager of Football Wayne Campbell told gwsgiants.com.au.

"Lachie can play as a tall defender or forward, but given his height and the retirements of Shane Mumford and Tom Downie, we see that he can provide us some coverage in the ruck too. 

โ€œHe was a popular member of the Collingwood Football Club and we have no doubt he will fit in to our group here. 

โ€œLachie has developed a lot as a footballer in his time in the AFL and we look forward to that continuing at the GIANTS in 2018.โ€

Keeffe played 40 games since making his debut in round 16, 2011, and has averaged 11.4 disposals and 4.3 marks per game.