Mark Cahill has become the first person in the UK to have a hand transplant.
The 51-year-old has spoken about his 20 year struggle with gout which led to the lost of his right hand, and the shock of finding out there was a possible donor on Boxing Day.
He also described how his new hand feels and how much he is looking forward to going back to work and being "able to hold my grandson's hand".
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The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.
The man, who was in his 30s, has not been identified, while several other people are believed to have suffered serious injuries.