Bear Grylls

Man vs. Wild host Bear Grylls has been sidelined by the wild. The British adventurer injured his shoulder after a fall on Friday during an Antarctica expedition to promote alternative energy fuels.

The South Pole adventure was unrelated to his Discovery survival series.

Grylls was en route back to his native U.K. on Sunday to receive medical attention, Discovery said in a statement.

"Once he sees a doctor, we will have a better sense of the level of seriousness of his shoulder injury and the recovery time needed to get him back to his full physical activity," the statement read. "Bear has a strong religious faith and a loving family to help speed his recovery. Our thoughts and prayers are with Bear as he makes the long trip back to the U.K."

Grylls joined the Antarctica mission for Ethanol Ventures, a biofuel company, to raise money for Global Angels, an international charity that advocates children's needs and one he has supported for years.