Shortly after 12 a.m., two suspects robbed a man near the intersection of North Racine and West Cornelia Avenues.
While struggling to hold on to his black iPhone, the victim bit one of the offenders on the arm, said police.
The suspects were described as two black males wearing all black clothing with white T-shirts underneath.
At 12:12 a.m., authorities stopped a possible suspect at the Wrigleyville Taco Bell at 1111 West Addison Street.
Investigators said the possible suspect was carrying a black iPhone.
However, the possible suspect was released after the victim failed to identify him as one of men involved in the robbery at Racine and Cornelia.
At the time of this report, both suspects were still at large.