Ireland wing to miss Six Nations campaign with dislocated shoulder

Hansen, 25, has won 21 Ireland caps and played an important role in their Grand Slam success last year.

• Ireland prop Kilcoyne ruled out of Six Nations

He also started three of Ireland's four group games at the 2023 World Cup as well as starting in their quarter-final defeat by New Zealand in Paris.

News of Hansen's injury comes just three days after it was announced that Ireland will be without prop Dave Kilcoyne for the defence of their Six Nations title.

Kilcoyne, 35, also suffered a shoulder injury, with Munster saying he will be out for up to six months after having surgery on his injury.

Ireland begin their Six Nations defence against France in Marseille on 2 February.

Head coach Andy Farrell will next week name an extended squad for a training camp in Portugal ahead of the start of the 2024 competition.