UFC champion Ronda Rousey ponders the nickel defensive formation.

Ronda Rousey will defend her UFC bantamweight championship in less than a month but first she's ringing in another FOX NFL Sunday. Rousey will give the introduction to today's FOX NFL Sunday at 12 p.m. ET and will no doubt bring her own special Rowdy One flair to the segment.

Check Ronda out, then all the great NFL action. Then, more Ronda.

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Stay tuned to FOX after the conclusion of today's second FOX NFL game for an exclusive interview with Rousey by Jay Glazer, on The OT. On Nov. 14, Rousey puts her belt on the line again, this time against former boxing world champion Holly Holm.

The two undefeated bantamweights will clash in the main event of UFC 193, in Melbourne, live on pay per view. In the co-main event, strawweight champion Joanna Jedrzejczyk takes on challenger Valerie Letourneau.