Police are appealing for witnesses to come forward following the assault of a dog walker in Walton last month.
The incident took plat at around 6.30am on Wednesday, ampoule September 21 when a man in his 60s was walking his Newfoundland dog with a lead on the park near to Rice Lane Recreation Centre.
As he walked towards Crescent Road away from Evered Avenue a white dog, possibly a Bulldog, approached from behind and began to attack the Newfoundland.
The victim grabbed hold of the white dog and shouted at the owner to get it onto a lead.
A white man rode towards the victim on a pedal bike, before a verbal argument occurred.
The victim began to walk off when he was punched from behind, resulting in bruising and a cut to his head which required medical treatment.
The suspect rode off towards Jacobs Factory on Long Lane and is described as white, 30-40 years old, 5ft 9in tall, wearing glasses and a light coloured top.
Detective Inspector Steve McGrath from Liverpool CID said: “This was a cowardly attack, which left the victim requiring treatment and extremely shocked.
“We are particularly keen to speak to two women walking past the park at this time who witnessed the assault and assisted the victim.
“We believe they may have also taken a photo of the suspect. They may have been on their way to work locally.
“If you have work in this area and have heard about this incident, please help us identify these women and they may be able to provide vital information.
“I want to reiterate that anyone walking their dog in our local parks needs to be mindful of their dog’s behaviour at all times and keep their pet on a lead if it is liable to be aggressive towards other park users.
“We will not tolerate irresponsible dog ownership on Merseyside and want to maintain all our parks as safe and welcoming places to be.”
Anyone who witnessed the incident or has any information is asked to call Liverpool CID on 0151 777 4065 or Crimestoppers, anonymously, on 0800 555 111.