Due to Leinster's victory in the 2012--13 European Challenge Cup, Connacht again participated in the Heineken Cup, where they were drawn into Pool 3 with Saracens, Toulouse and Zebre.
Due to Leinster's victory in the 2012--13 European Challenge Cup, Connacht again participated in the Heineken Cup. They were drawn into Pool 3 with Saracens, Toulouse and Zebre.