This is video of Valeriy Borchin collapsing in Saturday's 20-kilometer walk at the London Olympics.

Borchin, who was the defending champion, collapsed around the 19-kilometer mark, and Chen Ding of China went on to win the gold.

Borchin, who is from Russian, was put on a stretcher and taken away in an ambulance with heat exhaustion and dehydration. He is expected to fully recover.