Updated: June 12, 2012 5:44AM
An Illinois State Police trooper on patrol near south suburban University Park had to defend himself during a prolonged fight early Tuesday with a pedestrian walking along Interstate 57.
The trooper saw the man, 43, walking on the shoulder of northbound I-57 near Stuenkel Road at 1:18 a.m., according to an Illinois State Police District Joliet trooper.
The trooper pulled over and attempted to talk to talk to the man, who then attacked the officer, state police said.
A struggle lasting 10 to 15 minutes ensued before other law enforcement officers arrived on scene to finally subdue the combative pedestrian, according to state police.
Troopers from ISP District Chicago and officers from Richton Park, University Park and Monee assisted in bringing the man under control.
Both the state trooper, who is about 5-foot-9 and weights approximately 170 pounds, and the unidentified 43-year-old man were taken to St. James Hospital and Health Centers in Olympia Fields for minor injuries.
The state trooper sustained cuts to his hands and the pedestrian suffered injuries to his head and face, according to state police.
Charges are pending.