MUNSTER’S influential lock Tadhg Beirne will miss Ireland’s opening two Six Nations clashes due to a knee injury.

Ireland have called up Connacht lock Quinn Roux as cover, ahead of their Six Nations opener against England in Dublin on February 2.

Leinster’s Adam Byrne has been added to the Irish contingent’s training camp in Portugal, with Rob Kearney and Jack McGrath remaining with the province this week for extra game time.