If there was every a question about Frank Mir‘s status as one of the best BJJ-based heavyweights in the history of MMA it seems the former UFC champion answered it last night at UFC 140 by not only submitting iconic grappler Antonio Rodrigo Nogueira but breaking his arm in the process as well.

In this MMATraining Technique of the Day, Mir shares some knowledge om the very hold earning him “Submission of the Night” honors against Nogueira – the Kimura.