Submission Underground 2: Jon Jones vs. Dan Henderson is upon us.

Today, Sunday, Dec. 11, two of the greatest mixed martial artists of all time square off inside the cage in a submission-only grappling match inside Portland's Roseland Theater.

Yesterday, both Jones and Henderson weighed in, eliciting cheers and laughter from the crowd in attendance.

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In the night's co-main event, standout female fighters Miesha Tate and Jessica Eye face off in a rematch of their 2015 bout at UFC on Fox 15. While Eye missed the weighs in due to travel complications, Tate did step on the scales for the Portland crowd at home and online at FloCombat.com.

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Elsewhere on the card, grappling and MMA legend Jeff Monson faces off with BJJ black belt Warren Brooks, and female grappling wizards Rita Lynne Gribben takes on Kyra Batara.

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How to Watch Submission Underground 2

On TV: Now Available on Roku & Apple TV 4
STREAMING: Available only on FloGrappling.com. Sign up today for $20 monthly or $150 yearly. Yearly FloPRO access gets you premium content and events from ALL FloSports sites, including FloCombat, FloWrestling, and FloBoxing. SIGN UP HERE

NOTE: For existing monthly subscribers on FloCombat, upgrade to a yearly subscription in Account Settings or by clicking here to watch Submission Underground 2 on FloGrappling.com AND all premium content across FloSports' network of sites. You must either have a monthly subscription to FloGrappling.com or an annual subscription to any FloSports site to watch.