“We’re gutted for him, he’s contributed so much over the last 10 days,” he said.
“He’s been fantastic in his leadership and he was a big part of the reason why we got what we wanted out of today.”
Ringrose has made 29 appearances for Ireland since his debut in 2016 and was a part of their 2018 Grand Slam-winning squad..
Henshaw now looks likely to partner Bundee Aki in the Ireland centres in Paris, with Chris Farrell – who has not featured for Ireland since the World Cup – another midfield contender.
Ireland also revealed further updates to their squad, with Ulster scrum-half John Cooney being called up to provide additional cover for Jamison Gibson-Park.
Leinster’s Gibson-Park, who made his debut in the win against Italy, suffered from hamstring tightness after the match so Cooney – a surprise omission from Farrell’s original squad – will join the ranks at Carton House.