Geelong veteran defenders and premiership players Andrew Mackie and Tom Lonergan will hang up the boots at season's end.

Both players did a lap of honour following Geelong's 44-point win over Greater Western Sydney on Saturday night, with the game possibly the club's final match at Simonds Stadium this year, depending on results to come for the remainder of Round 23.

The pair confirmed the news during an interview with Luke Darcy and Matthew Richardson on Channel 7 in the Cats' change rooms after the win, after telling their teammates on the ground following the win.

Typical of their no fuss, workman-like playing style, it was a low key affair, with the pair saying they did not want a press conference or too much to take away from the job at hand with finals approaching.

“At the end of the year Domsy (Lonergan) and I are finishing up, so we thought what better way to go while the crowd’s happy?” Mackie said.

“We can lock in to finals from here, get that out of the way and focus on what we’ve got to do.”

“We let them know just after the game,” Lonergan added.

“We didn’t say too much, we obviously know we’ve got a big month ahead of us so we don’t want to get too carried away. Get it over and done with, do whatever media we have to and then move on to more important things.”

Coach Chris Scott said post-game he has an enormous amount of respect for what both players have been able to achieve in their careers.

"There is no one in the game I respect more than those two," Scott said.

"They give to the team, they help their teammates, they sacrifice their own interests if it is necessary for the betterment of not just the team itself but the football club."

Mackie has played 276 career games, including the 2007, 2009 and 2011 premierships.

Lonergan has played 206 games including the 2011 premiership.

The Cats' win over GWS has secured Geelong a second placed finish.