Great Britain's Saskia Clark and Hannah Mills and are on the brink of winning women's 470 gold.

Chichester University graduate Clark and helm Mills arrived at the Rio Olympics with unfinished business after taking silver on the home waters of Weymouth and Portland four years ago.

It was a challenge they met head on and a fine regatta means they are all but assured of Britain's second sailing gold of the Games.

Forced to race on their reserve day due to Monday's changeable conditions, Mills and Clark secured two third places either side of a second to build up a 20-point cushion ahead of the medal race.

It means that, subject to protest, the British duo will become Olympic champions if they complete the double-point medal race without disqualification.

Clark said: "Obviously we want to go and not be total clowns out there on the water tomorrow and get around the race course in good shape.

"But I think we've managed to keep a lid on that when we needed to. Today was a great example of that. As each race went past, it was still about the next race."

"Disbelief is how I felt," Mills added. "I didn't trust Joe (Glanfield), our coach, that he got the points right.

"It still hasn't sunk in, until we get the medal, until it is there and it can't go anywhere."