The hairy upper lip has infiltrated the Sydney Swans playing group, with three players taking on the Movember challenge in 2013.

Craig Bird, Harry Cunningham and Tim Membrey have all decided to grow a ‘mo’ this month for a worthwhile cause.

The Movember campaign, which encourages men across the country to grow a moustache for the month of November, aims to raise awareness of men’s health issues, as well much-needed funds towards research into illnesses such as testicular and prostate cancer.

While Bird and Membrey weren’t prepared to offer a sneak peak of their progress just yet, Cunningham sent through this image (below) of his developing moustache from his day out at the Wagga races this week.

To donate to the players’ Movember campaign, click here.