LAS VEGAS – When Serghei Spivac reached the podium backstage, he was exhausted. After the UFC on ESPN 25 co-main event, Spivac (13-2 MMA, 4-2 UFC) walked away victorious. He defeated an idol of his, Aleksei Oleinik (29-28, 29-28, 29-28), and swept all three judges’ scorecards to earn a unanimous decision (29-28, 29-28, 29-28). The win was Spivac’s third in a row, but perhaps the most special of the bunch considering who it came against. When Spivac started in mixed martial arts, Oleinik was already a well-established name.