At around 10.20pm the 47-year-old victim was within his flat in Wellgate when two men called, entered the properly and attacked him.
The first suspect is described as being in his late 40s, about 6’tall, of heavy build with dirty blonde hair. He was wearing a dark coloured hooded top with the hood up, dark coloured jogging bottoms and black gloves.
The second was also in his late 40s, about 5’8” tall and had short brown hair. He was wearing a grey coloured hooded top with the hood up, black joggers, black coloured framed glasses and black gloves.
Detective Constable Chris Smith at Lanark Police Office said: “This was a frightening attack on a man in what should have been the safety of his own home.
“I would appeal to anyone who was in Wellgate around this time on Saturday night to get in touch if they saw anything which might help us trace these two men.
“This is a busy part of town and we are hopeful someone may have seen these two men either before or after the attack.”
Anyone with information should contact the police via 101 or alternatively call Crimestoppers on 0800 555 111, in confidence.