Police say a 23-year-old man was walking near a park in the 5200 block of Brown Street just after midnight when he was approached by a man armed with a knife demanding money.
When the victim refused, the two men go into a scuffle and the victim was stabbed several times in the back.
The suspect fled on foot.
The victim managed to stumble into a pizza parlor in the 5200 block of Haverford Avenue for help. He was rushed to Einstein Hospital where he is listed in critical condition.
The incident remains under investigation. Anyone with information is asked to contact Philadelphia Police.