Novak Djokovic accepts the ALS Ice Bucket Challenge from John McEnroe, Niall Horan, Sabine Lisicki and Bernard Tomic. He nominates Conchita Wurst, Mr. Bean (Rowan Atkinson) and Michael Jordan to participate and raise awareness for ALS, also known as Lou Gehrig’s Disease. #ALSIceBucketChallenge #StrikeOutALS
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