Baseball megastar Bryce Harper has come out in support of an unusual way to help those affected by the Australian bush fires.
A variation of the 'Koala Bear challenge' requires participants to climb around a gym bench without touching the ground.
The challenge was raised by workout recovery drink company FitAid and began with the support of one-armed athlete Logan Aldridge who defied the loss of a limb to complete the harder-than-it-seems challenge.
The company is donating a percentage of all sales directly to the bush fire appeals and has partnered with Australian fitness freak James Newbury to ask his followers to attempt the challenge. Every tagged post will see the company donate more money "directly to the efforts of Australian wildlife protection services".