This was first reported on Kym Kemp's blog last night http://kymkemp.com/2015/12/29/man-assaulted-by-multiple-people/
I followed up with EPD this morning.
Brittany Powell told me that a male victim went to his friend's apartment on 2nd and reported he had been assaulted by two men who took his wallet. No weapons were used.
He complained of pain in his back and ribs and was taken to the hospital. Officers searched the area but were unable to locate suspects.