By: Farah Hannoun
Farah Hannoun, MMA Junkie Joe Lopez is confident in Mauricio Ruffy's ground game ahead of UFC 331. Ruffy (14-2 MMA, 5-1 UFC) gets a big step up in competition against Arman Tsarukyan (23-3 MMA, 10-2 UFC) in the Sept. 19 co-main event at Crypto.com Arena in Los Angeles.













