As Roberts was preparing to speak to the media after Game 6, Lasorda could be heard shouting in the hallway.
The outspoken 90-year-old told Roberts: "You haven't won (expletive) unless you win tomorrow."
Roberts appreciated Lasorda's version of a pep talk.
"I've heard it all year, and I think that it's great," Roberts said. "It's Tommy's words of encouragement. And yeah, I think for us, we want a championship and we're not done yet."
The Associated Press contributed to this report.
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