Former UFC light heavyweight champion Mauricio “Shogun” Rua suffered a second consecutive loss for the first time in his professional MMA career this past weekend, as Chael Sonnen caught him in a guillotine choke and forced a tap.

Murilo “Ninja” Rua, a former fighter himself and brother of Shogun’s, recently talked with MMA Fighting about the loss to Sonnen.

“I was surprised,” Ninja said. “Fighting on half-guard against a wrestler isn’t a good strategy.”

Ninja previously helped coach Shogun, but now runs a gas station in their native home of Brazil. He called out those currently directing his brothers career in the interview, saying he “has a lot of shady persons around him.”

“People trying to take advantage of him,” Ninja continued. “People from his camp said I wasn’t good for Mauricio because I made him nervous. Maybe in the future I’ll work with him again, who knows.”

Ninja retired after a third straight loss to Paulo Filho in 2012. He finished his MMA career a one-time EliteXC champion with a record of 20-13-1.