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"&lt;p&gt;&lt;/p&gt;&lt;p&gt; Roger Federer was in a giving mood over the weekend. (Photo from Twitter)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Roger Federer revived his wildly successful \"#AskRF\" Q&amp;amp;A on Twitter, spending nearly two hours answering fan questions over the weekend.&lt;/p&gt;&lt;p&gt;Federer showed off his well-decorated Christmas tree, fielded questions from tennis legends\u00A0and revealed that after all this time he still can't tell Bob and Mike Bryan apart.&lt;/p&gt;&lt;p&gt;Here are some of the best exchanges from another fun (and funny) session:&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409385381436465152&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409390094001668096&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409393960872706048&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409375858634137600&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409394553783721984&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409383030260637697&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409391686343593984&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409376531920592896&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409387044717088768&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409389636968919041&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409395481689587712&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409396286551384064&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409398416951627776&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409402933575286784&lt;/p&gt;&lt;p&gt;https://twitter.com/rogerfederer/status/409393557510688768\nhttps://twitter.com/Bryanbros/status/409402834367823872&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/tennis/beyond-baseline/2013/12/09/roger-federer-twitter-question-answer-bob-mike-bryan>