Over the weekend in Boca Raton, Fla., Kevin Anderson hosted an event benefitting South Florida dog rescue Dezzy's Second Chance and Ocean Conservancy's Trash Free Seas Alliance.

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Anderson and his wife Kelsey adopted their dog Lady Kady from Dezzy's.

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On Saturday and Sunday, the Grand Slam Cause for the Paws featured a chat hosted by comedian Michael Kosta with Sebastien Grosjean, Tennys Sandgren, Eugenie Bouchard and Shelby Rogers, autograph and photo sessions, a silent auction and on-court action with Mike and Bob Bryan and Sandgren.

Anderson hopped on the guitar during the after party celebrations.

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The world No. 6 is still auctioning off items, including signed merchandise by the likes of Rafael Nadal, Serena Williams and Roger Federer, Christmas gifts, tournament tickets, electronics, jewelry and more.

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His efforts have raised over $100,000 so far.