Lewis was injured when he slid into advertsing fencing after chasing a kick into the in-goal, with his left shoulder dislocated in the incident.
The shoulder was out of place for some 20 minutes as medical staff attempted to correct the injury, with Lewis admitting to severe pain as a result of the incident.
"It was probably the worst pain I've felt for a long time. I wouldn't wish it on anybody," Lewis said. "But I was blessed with the medical people I had around me and they made it as comfortable as they could for me."
Lewis underwent scans the day following the match, with the scan result sent to Sharks Doctor George Pitsis. From there Dr Pitsis will consult with a shoulder surgeon/specialist and also with Sharks coach Shane Flanagan today before a decision is made as to what will be needed to repair the damage to Lewis's shoulder and when the surgery will take place.
The injury was the only downer on a night where the Australian team, including Sharks Andrew Fifita and Paul Gallen as well as Lewis, helped the Kangaroos to a 34-2 victory.
Lewis crossed for a try in the win, with Gallen amongst the Australians leading 'metre-gainers' on the night.
The Australian team, including Lewis, flew to Ireland on Sunday to begin preparations for their next pool match at the World Cup.
Lewis was interviewed by NRL.COM following the game on Saturday night, with the video now playing on Sharks TV