The Adelaide Crow has been fundraising for the organisation since his mother passed away. 

"I recently became an ambassador for Breast cancer Australia," Greenwood told 20FOUR. "Obviously for me, my mum passed away in October, so it's been a close issue to me for awhile.

"I've been fundraising in the states, now I'm looking forward to getting back into it in Australia.

"I'll be wearing pink boots for the remainder of the season, and as I mentioned pink sport day's around the corner...so get involved. Wear as much pink as you can."