The 24-year-old will arrive for pre-season training in November after a recent spell with the Northampton Saints (England) and Counties Manukau (New Zealand) looking to add to his 25 Super Rugby caps.

"Wanting to be back in Australia and trying to get my name on the national radar was a huge driver behind coming home," Kellaway said.

"I think the Rebels were unlucky to miss the finals in 2019 and I'm excited about what the group they've built can achieve moving forwards."

Kellaway was tipped as a future Wallaby but admitted he wasn't ready when he had his first crack at Super Rugby.

After spending four years in the Waratahs program, Kellaway moved to England at the end of 2018 for a season with Northampton Saints where he established himself as a dangerous finisher.

"The UK was huge for me in terms learning about what I enjoy most about rugby and, I suppose, getting back to what it's all about which is enjoying the process and letting performances speak for themselves," said Kellaway.

Kellaway will be up against a host of Wallabies including Dane Haylett-Petty, Marika Koroibete, Reece Hodge and Jack Maddocks for a starting position.

Australian Associated Press