TMZ has learned Stephen Izzo -- the guy Ronnie knocked out during an episode of "Jersey Shore" -- was arrested this morning on charges of aggravated assault on a police officer and resisting arrest.Izzo was arrested by the Berkeley Township PD in New Jersey and is currently at the Ocean County Jail in Tom's River.
The aggravated assault on a police officer charge is a felony.
He is being held on $75,000 bail.












