In a very impressive and sensational performance Indian star boxer Vijender Singh knocked out his rival contender Dean Gillen in Dublin's National Stadium in the first round itself. The 30-year-old, who had clinched a Technical Knockout against another Englishman Sonny Whiting in his debut bout, was in rampaging form yet again as he finished off Gillen just over two minutes into the contest. Vijender's next bout is scheduled for December 19.