Colin Kaepernick was once a lightning rod for conversations about the future of quarterbacks in the NFL.

Now he’s become a lightning rod for a different type of conversation.

In 2017, Kaepernick opted out of the final year of his contract amid controversy over his decision to protest police brutality by kneeling during the national anthem. He was effectively blackballed from the league, as he has not signed a new NFL contract since.

Now, a former teammate is speaking out about his changed behavior on the team.

During an appearance on “Bussin’ With The Boys” this week, former 49ers tight end Delanie Walker said Colin Kaepernick was once a guy who partied with the team, but would suddenly change once he became San Francisco’s starter.

“Kap was a good teammate. Imma just be honest, earli

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