Around 7.20pm, a 59-year-old was walking along Riverview Drive when he was approached by a man who proceeded to attack him with what is believed to have been a bladed weapon.
The suspect then ran off from the scene towards the direction of Springfield Quay.
He is described as a white male, tall, slim build, wearing a burberry cap, black jacket, black jogging bottoms, with a black scarf covering his lower half of his face.
Emergency services were called and the victim was taken to the Queen Elizabeth University Hospital for treatment to serious injuries. Medical staff describe his condition as stable.
Detective Sergeant Nick Gribben, from Govan CID, said: “This was a vicious and brutal attack which has left the victim with significant injuries and extensive enquiries are underway to find the abhorrent individual responsible.
“From enquiries carried out so far we understand that a man and a woman were possibly with the victim at the time of the incident and were seen running away.
“The man is described as white Scottish, in his 20s, and wearing a black hooded top, and the woman is described as being in her 50s or 60s and wearing an aqua coloured dress with a white cardigan.
“We would appeal to these people to come forward and tell us what they know about what happened.
“Witnesses we’ve spoken to also reported that a man and women who had been on Paisley Road, adjacent to Riverview Drive at the time, spoke about seeing a black car (possibly a BMW) with black alloy wheels driving at speed away from the scene.
“It is absolutely vital that this man and woman come forward and assist detectives with the investigation.
“We would also appeal to anyone who was in the vicinity of Riverview Drive and may have noticed a car driving off at speed, or a man matching the suspect’s description running away, to please get in touch.”
Anyone with information is asked to contact Govan CID via 101, quoting incident number 3791 of Saturday 25 August 2018. Alternatively you can call CRIMESTOPPERS on 0800 555 111 where details can be given in confidence.