John Murray is waiting for the all clear from the British Boxing Board of Control so he can resume his career.
Murray was due to return against Gavin Rees last month with the winner expected to secure a world title shot but a scan revealed a swollen pituitary gland in his brain.
The former British and European lightweight champion was forced to pull out two weeks before the fight and went from being a world title contender to working 13-hour shifts digging roads.
"I thought if I beat Gavin Rees then I could get another world title shot," said Murray in the Manchester Evening News. "It was a chance to get back up there straight away. To get pulled out was devastating."
However, Murray, whose 31-fight unbeaten record was ended in eight thriller rounds by Kevin Mitchell in 2011, is now confident of being given the green light to make a comeback.
"I was told I had a swollen pituitary gland in the brain and I got it checked out," added Murray. "I've had a test and they've said there is nothing wrong with me.
"My doctor is sending a letter to the board. Apparently anyone could have it, but they don't get brain scans as often as boxers so it isn't picked up.
"It's not boxing related."