Ireland captain Caelan Doris has been ruled out of the Nations Championship Southern Series along with Tommy O'Brien.

…injury concern Leinster retain URC title with 36-7 victory over Bulls at Croke Park; Tommy O'Brien, Rieko Ioane, Jack Conan, Sam Prendergast and Harry Byrne score tries with fly-half Prendergast producing a man-of-the-match performance; Ireland pair Caelan Doris and O'Brien forced off with injuries Last Updated: 19/06/…