European Professional Club Rugby

European Professional Club Rugby (EPCR) is the governing body and organiser of the two major club rugby union tournaments: the European Rugby Champions Cup - named the Investec Champions Cup due to sponsorship reasons - and the EPCR Challenge Cup. A third tournament, the European Rugby Challenge Cup Qualifying Competition was introduced as a qualification competition for clubs from minor nations to enter the Challenge Cup.

Source: Wikipedia — European Professional Club Rugby (CC BY-SA 4.0)