Trener Joe Lopez sier at Mauricio Ruffy har vist stor fremgang i bakkekampen siden han begynte å trene med Alexander Volkanovskis team. Fremgangen skaper utfordringer for Volkanovski i sparring.

Kilde: https://www.sherdog.com/news/news/Alexander-Volkanovski-struggles-to-keep-Mauricio-Ruffy-down-coach-says-202558