The American boxer, 33, failed multiple drug tests in the run-up to his proposed fight with Anthony Joshua at Madison Square in June 2019.
After serving a backdated two-year suspension, Miller will be eligible to fight again in June but only if he continues to test negative through a Voluntary Anti-Doping Agency (VADA) random drug testing program.
The 33-year-old last fought in November 2018, where he knocked out Bogdan Dinu, a few weeks after doing the exact same thing to Tomasz Adamek.
But Fury recently invited Miller to be a part of his training camp for a couple of weeks despite the lengthy period of inactivity.
The Gypsy King, also 33, faces Dillian Whyte in a mandatory defence of his WBC heavyweight title later this month at Wembley Stadium in London on April 23.
And now Miller, who has sparred with Fury many times before, has opened up about what it’s like being back in Morecambe.
In a Instagram video as reported by The Mirror, he said: “I got my a** kicked just a little bit today.
“It’s alright though – I’ve been off for a little while.
“Big Baby’s back!”
Miller is itching to get back in the ring, but will have to wait a few months before he has served his ban from fighting.
The former professional kickboxer is seeking opponents who can put him right back in the title picture, with old rival Joshua, 32, also returning to the ring later this year to rematch Oleksandr Usyk.
Promoter Dmitry Salita told the Daily Mail: “Pending the Commission’s permission, we’d like it to be the end of June.
“End of June or early July – as soon as possible. He’s been training, he’s in shape.
“As soon as the Commission allows him to get a licence and as soon as we find him an appropriate date and TV partner to work with, he’ll be back in the ring.
“I think Jarrell is ready for Joshua – he just needs one fight to break a sweat and get the feeling again.
“I think Jarrell would be ready for Joshua in his next fight, honestly.”