Nogueira was a world champion in BJJ at the brown belt level, a black belt in Judo and black belt in BJJ under De La Riva and trained extensively with the Cuban Olymlic Boxing team.
Wait, Rodrigo also trained extensively with the Cuban team? I've always thought that Rogerio was the one who trained with them a lot, and than Rodrigo only accompanied him a couple times...
What I remember the best from that fight was that the consensus in the MMA community was that Big Nog won fair and square, but that he was kinda lucky to have fought a "green" Sergei; and if they were to rematch a year later, Sergei would destroy him.
Of course, that was when Sergei was believed by everyone (me included) to be the next generation top 3 HW...
Nowadays, newer fans look at Sergei's wins over Semmy Schilt, Ninja Rua and Pedro Rizzo, and go "lol can crusher", but back then it was a big deal (especially since Rizzo left the UFC on a winning streak over good opponents and all ).
His win over Werdum has aged very well, but he injured his shoulder in that fight, which cost him the first Overeem bout (that pretty much everyone wrote off as a fluke; if anything, fans were impressed by Kharitonov's resilience)
I guess it was the Aleks loss that started to really make his lose stock, even if once again, there were talks of "flukish win" since he was showboating like Anderson was Weidman 1...
And then the Monson loss sadly sealed his fate.... the Snowman was a huge fan favorite on sherdog, but Sergei was suppose to run through him easily...
Crazy how talented guys like Sergei, who had everything to succeed, a good team, good standup, good sambo... but he couldn't cut it because of a bunch of factors.