Resident Ultimate Fighting Championship (UFC) photographer, Josh Hedges, was on the scene at the Mandalay Events Center in Las Vegas, Nevada, today (Feb. 1, 2012) to shoot several of the notable fighters who will compete on the UFC 143: "Diaz vs. Condit" pay-per-view (PPV) main card at the event's open media workouts.

Naturally, the two men who will compete for the interim welterweight title in the main event of the evening, Nick Diaz vs. Carlos Condit, were on the scene to promote their highly-anticipate 170-pound clash, as well as work up one of the last few real sweats prior to fight night (Sat., Feb. 4, 2012) in "Sin City."

So, too, was UFC Welterweight Champion Georges St. Pierre, who is recovering from recent knee surgery and will fight the winner of the Diaz-Condit match later this year.

Co-main event participants, Josh Koscheck vs. Mike Pierce, were also in attendance prior to their 170-pound bout, along with the two men who will compete in the only heavyweight bout on the UFC 143 fight card, Fabricio Werdum vs. Roy Nelson.

Check out more great pics from the UFC 143 open media workout after the jump courtesy of UFC.com:

Carlos Condit

Nick Diaz, rolling with brother Nate Diaz

Georges St. Pierre

Fabricio Werdum

Roy Nelson

Josh Koscheck

Mike Pierce

To check out the complete UFC 143 open media workout photos gallery from Hedges, which includes many more fantastic images, click here.

Remember, too, that MMAmania.com will provide LIVE blow-by-blow, round-by-round coverage of UFC 143, beginning with the "Prelims" bouts on Facebook/FX at 6 p.m. ET. In addition, we will also provide LIVE, real-time results of the pay-per-view (PPV) main card action as it happens throughout the evening this upcoming weekend.

See you Saturday!