Question: Who are the northern rivals of the professional rugby union club whom Will Chudley made his debut game for Exeter against?
Sentence (from "Yenisey-STM Krasnoyarsk"): They participate in the Professional Rugby League, the premier rugby championship of Russia, and in 2015–16 qualified for the European Rugby Challenge Cup, making them the first Russian rugby union club ever to compete in a major European club competition.
Relevant evidence: No