Azzam suffers a hit but no damage is done on course to Sanya

Top five Volvo Ocean Race boats seperated by just four hours in the final stretch to the finish.

After two weeks and over 2,500 miles of sailing from the Maldives to Sanya in China, the top five Volvo Ocean Race boats were separated by just four hours as they take on a gruelling 500 mile beat to the finish.

Ian Walker, the Abu Dhabi Ocean Racing skipper, told of Azzam's collision with an unidentified floating object in the night. "Something hit our daggerboard and rudder hard and I was pretty glad … that both were still intact."

Catch Ian Walker's audio interview here.