The Alabama Crimson Tide won two national championships during Najee Harris' collegiate career, but it wasn't always smooth sailing for the running back.

During a discussion on The Pivot Podcast with Ryan Clark, Channing Crowder and Fred Taylor (h/t TMZ Sports), Harris explained that he and head coach Nick Saban "did not get along at first" and consistently "bumped heads."

"I'm not the type of dude to just sit back and just let somebody talk to me in a way and not expect me to say something," he said. "I can take coaching, but, like, it's just a certain type of line when you cross, it's like 'All right, bro, I'm a man, you ain't gon' f--king talk to me like that.'"

He also added that he felt "belittled" at times and even left campus following an incident that happened ahead of his final season.

"Last incident happened and I left school," Harris said. "... I left school for like two weeks—people didn't know that. I left school for like two weeks and then Saban sat me in his office."