McAslan has teamed up with San Diego architect Safdie Rabins. Viñoly is working with New York practice Frederic Schwarz. Aidan Potter, a McAslan partner, said: "We had the guts to fly 6000 miles for the briefing and so we're very happy to get on the list. San Diego is fantastic because you can walk around the centre, unlike a lot of American cities."
He said the competition was an examples of the trend for Americans to move back to the centres of big cities. The space around the stadium can accommodate about 1300 residential units. A large part of the centre of the town will be used for mixed-use development.
A decision will be made on the winner by the end of August.