Video: Warriors co-owner Joe Lacob lets out primal scream completing the Ice Bucket Challenge

Warriors co-owner Joe Lacob completed the Ice Bucket Challenge, joining in on the effort to raise awareness for ALS as he screamed after having ice water poured on him.

Lacob proceeded to challenge president Rick Welts, general manager Bob Myers and executive board member Jerry West.

The Warriors co-owner was originally challenged by forward Harrison Barnes, one of a number of players who have posted videos of themselves doing the Ice Bucket Challenge.

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