Blow for Connacht as Tiernan O'Halloran ruled out for 'a number of weeks' February 14, 2018 812 Breaking News.ie : Rugby Blow for Connacht as Tiernan O'Halloran ruled out for 'a number of weeks' Connacht have announced that full-back Tiernan O'Halloran has suffered a hamstring injury during their 26-15 win over Ospreys.