The Donegal middleweight had suffered what doctors described as a ‘one in 10 million’ in March.
Quigley hurt his hand punching Glen Tapia in the second round of their NABF middleweight title fight in Los Angeles, live on ESPN.
The Golden Boy starlet battled through to a points win and learnt afterwards that he had broken a bone in his hand and suffered a freak shredded tendon.
Quigley went under the knife soon after, and was said to be recovering well, before being forced to return to a cast last month after it emerged the broken bone was healing slowly.
Yesterday the Ballybofey boxer finally received the green light to return to full training alongside Mick Conlan under Manny Robles at The Rock Gym, in Carson, California.
Quigley’s management company Sheer Sports announced this evening that “Jason Quigley finally got the all clear from his Beverly Hills hand specialist.”
With the return confirmed, it is hoped that ‘El Animal’ will be back in the ring before the end of the year.