Ian Walker and Mark Covell added to Britain's sailing haul by landing a silver medal in the star class.

Walker and Covell finished behind the American pair of Mark Reynolds and Magnus Liljedahl, who had been third going into the final race.

Brazil's defending champions Torben Grael and Marcelo Ferreira had to settle for the bronze after being disqualified at the start of the last race for a rule infringement.

Walker and Covell had been lying second five points behind Grael and Ferreira but the British pair ended up a point behind the American pair, just failing to give Britain a fourth gold to add to those of Shirley Robertson, Ben Ainslie and Iain Percy.

Walker was a silver medallist with the late John Merricks in Atlanta, while Covell's pervious partner died in a sailing accident two years ago.