It happened just after midnight on May 23 in the city's Kensington section.
Surveillance video shows the group of men in a verbal altercation on the 1900 block of North Front Street.
As one of the 33-year-old male victims walks over, he's punched and knocked to the ground.
Click here to view the surveillance video
The man tries to stand back up but is kicked in the face and knocked unconscious.
The fight spills into the street where the group then attacked a second 33-year-old man, stabbing him twice in the back.
The first victim was taken to Hahnemann University Hospital where he was treated for face and neck woulds and a concussion.
The second victim was taken to Temple Hospital in stable condition with two stab wounds to the back.
If you see these suspects do not approach them, contact 911 immediately.
Anyone with any information on this crime is asked to call Philadelphia police at 215.686.TIPS (8477) or text a tip to PPD TIP (773847).
You can also submit an anonymous tip online at PhillyPolice.com.