Six Nations 2018: Ireland centre Chris Farrell set to miss rest of tournament
Ireland centre Chris Farrell will miss the remainder of the Six Nations after being injured in training on Tuesday.
An Irish Rugby statement said that Farrell, man of the match against Wales on Saturday, sustained ligament damage after twisting his knee in the turf.
Munster has now confirmed the powerful centre suffered an ACL injury, which will require an operation to repair.
As well as the Six Nations, Farrell, 24, will also miss Munster's Champions Cup quarter-final against Toulon.
The ex-Ulster academy player made his Six Nations debut in Saturday's 37-27 win after replacing the injured Robbie Henshaw.
Garry Ringrose now looks the obvious choice to come into the Ireland midfield.
After winning their opening three Six Nations games, Ireland next face Scotland in Dublin on 10 March where victory will see them having the chance to complete only the third Grand Slam in the country's history against England at Twickenham on 17 March.
"Chris Farrell received treatment on the field earlier today after twisting his knee in the turf," said the Irish Rugby statement.
"He subsequently jogged on to rejoin the rest of the playing group and felt well.
"He was sent for a precautionary scan this afternoon, which indicated some ligament damage had occurred and he will now see a specialist. Chris is unlikely to be available for the remainder of the Six Nations."
After returning to Munster for further treatment, the province revealed that a specialist had recommended surgery, which will rule the player out for the rest of the campaign.
Farrell earned his first Ireland cap against Fiji in November and Saturday's contest was his third international appearance.
The County Tyrone-born player began his professional career with Ulster before moving to French club Grenoble.
His form for Grenoble led to him being snapped up by Munster and he had a hugely impressive first season for the Irish province.
Ringrose, who has 11 caps, returned to Leinster duty for the first time since early January when he played 55 minutes in Friday's Pro14 win over Southern Kings.
Henshaw will miss the remainder of this season after sustaining a shoulder injury in Ireland's win over Italy while previous regular Jared Payne has been unable to play since last summer's British and Irish Lions tour because of recurring headaches.