By Zach Koons The Ravens signal-caller explained that the historical bias is one of the reasons he needs to win a Super Bowl. View the original article to see embedded media. Despite being one of the best players in the league for the last four years, Ravens star Lamar Jackson said that he still feels like he has something to prove as a Black quarterback in the NFL. During an appearance on LeBron James’ YouTube interview show “The Shop,” which had its season five premiere on Friday, Jackson addressed the issue. At one point during the episode, conversation broke out about how there has been a …