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Welterweight contender Josh Koscheck has injured his back during training and is now out of his UFC 151 fight against Jake Ellenberger. No replacement has been named at this time, but one should be named shortly for the September event. Ellenberger recently saw a six fight winning streak snapped at the UFC Ultimate Fighter Live Finale when he lost to Martin Kampmann. UFC 151 takes place on September 1st at the Mandalay Bay Events Center in Las Vegas, Nevada with Jon Jones and Dan Henderson headlining.
