Police deployed horse patrols and tactical units on South Street late Saturday to prevent a repeat of the rowdy crowds that erupted into a melee the night before.
Officers patrolled near Fifth and South Streets, where crowds had gathered until 2 a.m. Saturday. During that confrontation, police arrested Derek Langone, 25, of Chicago, for allegedly shoving and punching an officer.
Others from the crowd dispersed, police said, but Langone fought them. Police used a Taser to stop him.
None of the officers was injured. Langone was being held on preliminary charges of aggravated assault.