![Roger Federer on Twitter: "#IceBucketChallenge accepted #AnnaWintour, @GavinRossdale and @AnaIvanovic https://t.co/BAfIfM3n0u http://t.co/jZ0fuNiEP9" / Twitter Roger Federer on Twitter: "#IceBucketChallenge accepted #AnnaWintour, @GavinRossdale and @AnaIvanovic https://t.co/BAfIfM3n0u http://t.co/jZ0fuNiEP9" / Twitter](https://pbs.twimg.com/media/BvmH9EyIgAAP6Zn.png)
Roger Federer on Twitter: "#IceBucketChallenge accepted #AnnaWintour, @GavinRossdale and @AnaIvanovic https://t.co/BAfIfM3n0u http://t.co/jZ0fuNiEP9" / Twitter
Sportskeeda - Rafa Nadal and Roger Federer took up the #ALSIceBucketChallenge to create awareness about the ALS disease -> http://s-k.cm/TennisALSIceBucket | Facebook
![Mailbag: Roger Federer as the U.S. Open favorite, wrist injuries and more tennis TV talk - Sports Illustrated Mailbag: Roger Federer as the U.S. Open favorite, wrist injuries and more tennis TV talk - Sports Illustrated](https://www.si.com/.image/ar_4:3%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTY4MTk5MzAxNzQ4Njk2OTg5/179385260jpg.jpg)
Mailbag: Roger Federer as the U.S. Open favorite, wrist injuries and more tennis TV talk - Sports Illustrated
![Roger Federer, Novak Djokovic and the tennis world take on the ALS Ice Bucket Challenge - Sports Illustrated Roger Federer, Novak Djokovic and the tennis world take on the ALS Ice Bucket Challenge - Sports Illustrated](https://www.si.com/.image/t_share/MTY4MjU2NDQzMzM3MzUzMDg5/tennis-ice-bucket-leadjpg.jpg)
Roger Federer, Novak Djokovic and the tennis world take on the ALS Ice Bucket Challenge - Sports Illustrated
![Ice Bucket Challenge sees Ana Ivanovic nominate Roger Federer and Bastian Schweinsteiger | Daily Mail Online Ice Bucket Challenge sees Ana Ivanovic nominate Roger Federer and Bastian Schweinsteiger | Daily Mail Online](https://i.dailymail.co.uk/i/pix/scaled/2014/08/20/1408528044146_wps_3_Ana_Ivanovic_ice_bucket_c.jpg)