The 28-year-old Manchester lightweight was left with a fractured skull and broken ankle after chasing two men who had broken into a neighbour???s house last week.
His world title fight against Richard Abril on January 23 was scrapped as a result of his injuries and his trainer Joe Gallagher admitted he was unsure whether or not Crolla would even be able to box again.
But Crolla, who has now left hospital, took to Twitter on Sunday night to thank people for their support, and he promised to “be back stronger than ever in 2015”.
He said: “I can’t thank everyone on here enough for all the msgs of support. Honestly took back by them all they’ve meant the absolute world to me and my family.
“I’m devastated over what happened and having to pull out of my fight but I’ve got a lot to be thankful for as I’m a very lucky man.
“It’ll be a tough road back but I promise that I will be back stronger than ever in 2015. Thanks so much again.”
Promoter Eddie Hearn was also in a positive mood as he tweeted on Sunday after speaking to Crolla.
“Great chat with @ant–crolla tonight – great to hear him in such good spirits,” he said. “Excited for ‘the comeback’-he will get his World title shot!”
Police said on Friday that a 17-year-old boy was being questioned in custody on suspicion of burglary, assault and possession with intent to supply drugs in connection with the incident.