Ben Ainslie is targeting a fifth Olympic gold medal in 2016, having previously hinted he would not compete in Rio.
Ainslie, 35, became the most decorated Olympic sailor in history by taking gold in the Finn class at London 2012. He then said: "I don't think I can sail one of these again. It's killing my body. I don't think you will see me in Rio."
But he admitted yesterday: "I'd love to be in Rio if it's possible. It has been a huge part of my life."
Another Olympic gold medallist, Jade Jones has decided to take a short break from taekwondo and will not compete again this year.
It means the 19-year-old will miss the British Championships at the Manchester Velodrome on 8-9 September.