A man was attacked by two men who called at his house and tried to force him to hand over his dog.
He was approached by two men who forced their way into his home in Caperns Road, North Anston, and attempted to steal his Staffordshire Bull Terrier.
When he refused to hand over the dog they assaulted him before leaving empty-handed.
They drove off in a white Ford Transit van, with the registration number EF61 ULX.
Detectives investigating the incident, which happened at around 9am on Saturday, March 3, have only now released details.
They have also circulated some CCTV images of men they believe could hold vital information about the attempted robbery.
Anyone with information should call South Yorkshire Police on 101 and quote incident 296 of March 4.
Crimestoppers can also be contacted, anonymously, on 0800 555111.