Jones became the youngest British boxer to fight at the Olympics in 1976 when he competed in Montreal at 17 years old and four months.
He says Eccles’ mentality helped her to negotiate her challenges, not least the latest “nasty” knee injury and subsequent surgery.
“We weren’t sure whether she was going to box again, but Rosie is the type of person who will never lay down to anything that gets in her way,” he said.
“Nothing is too much, no run is too long and no mountain is too steep.
“She knows how to push through and has come away with gold in the last two tournaments in Europe, which were big achievements.”
Eccles says she has always wanted to go about doing things the right way despite her setbacks.
“I didn’t reach my absolute aim of Olympic gold and sometimes I have those days I [ask] if I have underachieved in my career,” she said.
“But I think the way I’ve gone about my career is the most important thing.
“I wanted to set an example for my nephews and nieces to always push back when things are hard and keep chasing your dreams. That’s why I haven’t retired until now.
“I would only want to go to LA [the next Olympics] if I had a chance to win a medal.
“In terms of effort and dedication and graft, I know there’s nothing more I could have done.
“Someone asked me what have I got to gain any more. Actually knowing I’ve given everything to the end.”