Great Britain's Josef Craig and Jonathan Fox have stormed into the men's S7 400m freestyle final.
The duo set the fastest times in their respective heats, with Craig breaking the world record set by his teammate Fox by finishing the race in 4:45.79.
Craig, who took a substantial lead by the fourth leg at the Aquatics Centre, will line up in lane one with Fox, who blasted out of the blocks in his heat, sitting in lane two.
Fox led the race for the first four legs but after a quick start the gold medallist began to tire and almost relinquished the number one spot to Andrey Gladkov of Russia in a matter of seconds.
