"It's unfortunate that people will judge him based on that. It's up to Richard, with all these eyes on him now, to continue to show people the other side of him."
Sherman, 25, led the league with eight interceptions this season. The two-time Pro Bowler has 20 career interceptions in three seasons, all with Seattle.
Sherman attempted to explain his mindset and provide context for his postgame tirade in a column posted Monday morning on mmqb.com. Sherman also responded to widespread criticism, some of which he alleged was racist in nature, that he has received since the game.
"To those who would call me a thug or worse because I show passion on a football field -- don't judge a person's character by what they do between the lines," Sherman wrote in the column posted on mmqb.com. "Judge a man by what he does off the field, what he does for his community, what he does for his family.
"But people find it easy to take shots on Twitter, and to use racial slurs and bullying language far worse than what you'll see from me. It's sad and somewhat unbelievable to me that the world is still this way, but it is. I can handle it."
Sherman also took to Twitter on Monday to reply to some racially fueled backlash.
Last night shows that racism is still alive and well... And that's so sad.... At Least some people respect MLKs dream— Richard Sherman (@RSherman_25) January 20, 2014
Sherman said his issues with Crabtree go back to something that happened during the offseason.
"He said something personal face-to-face," Sherman said. "He knows what he said, and he knows I'm going to be tough on him the rest of his career."
ESPN.com Seahawks reporter Terry Blount and 49ers reporter Bill Williamson contributed to this report.