Crolla, 28, has been out of action since a November victory over Gyorgy Mizsei Jr after suffering a fractured skull and a broken ankle in a burglar attack just before Christmas and was hoping to make his comeback in late spring.
Despite passing a brain scan in his native North-West, Crolla is still yet to receive the final clearance from the British Boxing Board of Control and Gallagher says a coveted place on the Kell Brook v Frankie Gavin world title undercard is currently out of reach.
“Crolla won’t fight May 30,” Gallagher exclusively told World Boxing News.
“We’ve just got to sit and wait to see what happens with the Derry (Mathews) fight and the (Ray) Beltran fight. Also, we haven’t got clearance from the board yet and we are waiting for them to clear it.
“We have sent all the scans to them, but we have not got clearance to fight yet. (Scott) Cardle will fight May 30th, Callum (Smith) will be May 30th, but that is it for the moment from my stable anyway.”
It was feared ‘Million Dollar’ may never fight again as was the seriousness of the incident involving two youths in December, although with Crolla’s determination to get back in the ring, Gallagher believes his charge will fight again at some point this summer.
“Right now regarding Crolla, I am just waiting for the board and Robert Smith as they have got all the details there and we are just waiting for them to give us the go ahead to fight.
“He had the scan up here and sent all the doctors reports and injuries he had down to the board. The board now have to look at that and take it from there. We are just waiting for the decision from the board as we did the brain scan and we were told it was brilliant.
“We just need the green light from the board, but we want Crolla to fight in June. He will definitely fight before the end of this season,” he added.
The former British lightweight champion was due to fight for his first world title against talented WBA belt holder Richar Abril before the attack, and after a successful return in coming months, could be in line to face the Cuban again by the end of 2015.