Help Adelaide's Richard Douglas claim the Lifebroker AFL Mark of the Year by voting for his high-flying mark against Greater Western Sydney at Skoda Stadium on Sunday.

Watch Douglas' mark and vote for him at www.afl.com.au/mark

All voters who have selected the same Lifebroker AFL Mark of the Year as the All-Australian Committee at the end of the home-and-away season and entered their details will go into the major prize draw. Plus, Lifebroker is giving away $200 to one lucky voter every week.

For full terms and conditions on the promotion please visit www.afl.com.au