Curran shoots a quick double and Shamhalaev sprawls. Curran ducks under, cuts the corner and locks up a lightning-fast guillotine. Shamhalaev's nearside arm is actually caught in the guillotine as well, with the far arm trapped. Despite the awkward position, the choke looks tight and Curran is just torquing the Dagestani fighter's head. Referee Keith Peterson sees the challenger go limp and immediately halts the fight. Shamhalaev is unconscious briefly, but upon gaining his wits, is furious to find the bout has been stopped.