Before he steps back inside the Octagon Saturday night at UFC 237 to take on Clay Guida, check out this collection of some of the best moments in the career of BJ Penn.
The former UFC champion has experienced plenty of highs during his time in MMA.
Below is the current fight card for UFC 237: Namajunas vs. Andrade:
MAIN CARD (PPV/10 p.m. ET)
UFC Strawweight Championship
Rose Namajunas (c) vs. Jessica Andrade
Middleweight: Jared Cannonier vs. Anderson Silva
Featherweight: Jose Aldo vs. Alexander Volkanovski
Welterweight: Thiago Alves vs. Laureano Staropoli
Lightweight: Francisco Trinaldo vs. Carlos Diego Ferreira
PRELIMINARY CARD (ESPN/8 p.m. ET)
Light Heavyweight: Antonio Rogerio Nogueira vs. Ryan Spann
Lightweight: Thiago Moises vs. Kurt Holobaugh
Female Bantamweight: Irena Aldana vs. Bethe Correia
Lightweight: BJ Penn vs. Clay Guida
PRELIMINARY CARD (UFC Fight Pass/6 p.m. ET)
Female Flyweight: Luana Carolina vs. Priscila Cachoeira
Welterweight: Warlley Alves vs. Sergio Moraes
Bantamweight: Raoni Barcelos vs. Carlos Huachin
Female Bantamweight: Talita Bernardo vs. Melissa Gatto