Gilberto “Zurdo” Ramirez is confident heading into his fight with Dmitry Bivol on Nov. 5. Gilberto “Zurdo” Ramirez’s 45th fight will be the biggest of his pro career, as he’s set to face WBA light heavyweight titleholder Dmitry Bivol on Nov. 5 in Abu Dhabi, live on DAZN. Ramirez (44-0, 30 KO) is a former titleholder at 168, but his run at 175 lbs hasn’t been the most inspiring. To be fair to him, he’s said repeatedly — dating back to before Bivol beat Canelo Alvarez earlier this year — that Bivol was his main target. He’s got the fight…