- The attack happened around 8am on Friday the 27th September
- The man is described as black and of scruffy appearance
- He was wearing a grey hooded jumper with the hood worn up
More top news
The impact of the 4mph crash pushed the buffers back by over a metre.
The 18-month-old puppy lives with owners Chris & Gillian French and their 10-year-old daughter Mia at the Mitre pub in Richmond-upon-Thames.
Detectives are hunting two suspects after the 23-year-old victim was left with a broken rib and a deep cut to his lung.