Random thoughts on healing
As always, there's limited information to base assumptions on, but here a few thoughts on healing:
Hopefully the fracture didn't involve the joint and was limited to just the shaft of the bone. (This is the most likely scenario, a "Boxers Fracture"). If it did involve only the shaft of the bone, it was likely treated with a plate and screws and it would be relatively stable immediately. That would allow immediate range of motion exercises and potentially a much sooner return to play, possibly with a protective splint. Conditioning-wise, the only limiting factor would be skin healing; swelling control and the prevention of infection would be the primary concerns. Once the skin heals sufficiently, conditioning would be unrestricted. Shooting touch would likely be most affected during the healing process.
If the metacarpophalangeal joint was involved (i.e. the fracture extended into the joint), the timeline for healing could be considerably longer.