A group of people reportedly swarmed the couple as they left the bar, according to Lenzner, closing in on him and his wife and intimidating them.
"I got mobbed by everybody that was in that bar outside," he told KPTV. "People came from the inside out — just circled me and my wife."
Lenzner said that people in the group were hitting him and attempting to take his hat when a sucker punch flew out of nowhere.
"Surrounding me, literally surrounding me, pushing me," he said. "I'm just trying to get through, trying to stop the person from hitting me, from taking my hat, and then I get sucker punched."
Police arrested and charged 22-year-old Leopold Hauser and 23-year-old Adebisi Okuneye with third-degree assault, the station reported. Authorities discovered the two just a few blocks away from the bar where the incident took place after Lenzner provided a license plate number.
Hauser and Okuneye were booked into the Multnomah County Detention Center that morning. The two are expected to be arraigned Monday.
Witnesses say that Lenzner started the scuffle, but police insisted that the victim "never involved himself physically in the altercation," according to KPTV.
You can watch a video report on the incident here.