picture of Spencer Fossier

Spencer Fossier is a Brazilian jiu-jitsu competitor and one of the 16 contestants on FloGrappling’s reality TV show, Who’s Next: Submission Fighter Challenge presented by Tezos. Born on May 16, 1990, Fossier is a brown belt under Craig Jones. The most eccentric member of the 16 competitors, 32-year-old purple belt Spencer goes by the moniker "Sewer Rat". He hails from Louisiana.

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Who's Next: Welcome to Who's Next (Episode 1)

May 18, 2022

Welcome to Who’s Next! The only grappling based reality show focused on uncovering the next big thing in the world of jiu-jitsu. Sixteen elite grapplers from all over the globe have come to Austin, Texas for a submission only no time limit tournament unlike any other. Led by grappling superstars, Tim Spriggs and Craig Jones, these athletes will compete for a $10,000 cash prize, a three fight contract on Who's Number One and for a shot to be named the first-ever Who's Next champion.