3 3, delaney, joined Championship side Featherstone Rovers to get 20-19, but was injured in a pre-season trial match against Halifax.
The Australian ended a stay at the conclusion of 2018 at the Rhinos.
He won three Grand Finals and played in and lifted two rebounds, while at Headingley.
“Unfortunately it isn’t resolved and it seems like I am going to need to have any other operation, but I’ve still really enjoyed the brief time that I’ve needed here,” Delaney explained.
“I’ve had a wonderful career, where I’ve done everything and don’t have any doubts. I’d like to offer a special thanks to each of my coaches and the fans at Leeds and Featherstone.”
After spells at the National Rugby League within his homeland, Delaney moved as a center into Super League however wound up playing nearly all his 213 games for Leeds .