Mongolian wrestler B.Buyandelger won couple silver medal at Jiu Jitsu US Grappling Chicago  in Chicago USA last weekend. B.Buyandelger won at US Championship Cup  in USA last year too. And this year she competed in woman`s 64 kg category at Jiu Jitsu US Grappling Chicago to win silver medal. After that she also won at absolute category at the competition.