Former MotoGP World Champion Casey Stoner was 'squeezed out' of his test role by Marc Marquez, forcing a switch to Ducati.

The Australian, who retired from competition in 2012, took up the role for HRC but says he was persona non grata when it came to the outfit's 'young gun'.

"I tried with Honda at the beginning but kind of got squeezed out a little bit by the young gun coming through, didn't want me around," said Stoner, speaking to Chris Vermeulen.

"So, we tried this with Ducati as well, but couldn't come to an agreement on terms, things like this, so we had to step aside from that role. I didn't really feel like I could give to the team what I wanted to.

"I knew what the riders wanted, we worked really well together, but unfortunately riders don't always get to say. As you know, with some manufacturers they see data and they see what they believe is the correct direction and it doesn't always sit well with the riders.

"So, it was just a constant slog, a constant fight trying to get the right things changed on the bike to move forward. And it was hard work. Being in Australia and not able to be over there as well, having more meetings and discussions and pushing them harder was a little bit difficult."

Stoner believes he can still contribute to racing and would like to take up a role in the paddock somewhere.

I still think I have a lot to give the sport. I still think there are certain aspects where I think outside of the box maybe and have a different view of things that can help in some ways.

"I'm certainly not going to go in and make solutions etc but I know what needs to be done to win races and that I have something to give back in the future.

"At the same time, I might have to wait until this chronic fatigue passes so I can actually give a little more than I currently can. I'm currently trying to put all my efforts into this and my family.

"But to be honest, yeah, I would like to be involved a little bit more and let's see what the future holds for MotoGP."