Fiji sevens coach Ben Ryan welcomed the 28-year-old into his fold but warned there were no guarantees he would be selected for the London tournament or the Olympics.
Sevens-mad Fiji are one of the hot medal favourites for Rio and are stacked with natural athletes that rival Hayne for speed, skills and power.
Hayne has no top level rugby union or sevens experience.
“I’ve had a few conversations with Jarryd and followed his career in the NRL in Australia, in the Bati with Fiji, and more recently with the NFL as a running back for the 49ers,” Ryan said.
“He got a taste for sevens when he was with the boys in Sydney and that sowed a few seeds, and that has just got bigger.
He has had a chat with the 49ers and his agent, and I have with everybody else to make sure he is on our accreditation list and to ensure he ticks our boxes, he is a Fijian passport holder, all those sorts of things.
“I have no promises he is going to make the 12 (for London), but we will see how he goes.
“He will then come into Fijian camp for the Olympic period.
“It is a huge challenge for Jarryd but if he gets into the squad it is only going to be on form, because he is a blinding rugby player.
“If he doesn’t make it, is just shows how good this Fijian sevens side is.
“It is a no lose situation for me.
“It is no lose for Jarryd either, he gets himself into the possibility of being a part of this journey, and the boys are all going to learn off him as well.
“He comes in with an A* but it is up to him to hang onto that, it’s really exciting and really what the Olympics is all about.”
