The incident happened around 12:45 p.m. on the 4800 block of Benner Street.
The victims, a male and female, were taken to the hospital following the robbery. The female victim was stabbed on the side of the head, and the male suffered stab wounds to the upper arm.
A wallet, medication, a purse and money were taken in the robbery.
Police are looking for two males seen fleeing the scene.