When it was announced that Billy Crystal would speak about the late Muhammad Ali at his memorial, we all knew he would break out his famous, phenomenal impression.

He certainly didn't disappoint on Friday, delivering an absolutely perfect impression of the champ.

Crystal regaled the audience with funny anecdotes and heartfelt sentiments throughout his eulogy, drawing tremendous applause from the crowd.

He also offered an amusing story from mutual friend Howard Cosell's funeral.

Crystal became friends with Ali in the 70s, and earned notoriety for his famous "15 rounds" roast.

Check out our live blog for complete coverage of the memorial.

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Billy Crystal eulogized Muhammad Ali at his memorial. Screen Shot/@CBSNLive