SI.com Staff
Friday July 31st, 2015

Nearly three years after his last professional tennis match, Andy Roddick kicked off the summer hard court season in Atlanta with a win in doubles with partner Mardy Fish. In other Twitter news, Victoria Azarenka celebrated her 26th birthday on Friday but also announced her withdrawal from the Citi Open on the tournament's Twitter page, while Novak Djokovic, Genie Bouchard and other players gave a glimpse of their workouts ahead of the U.S. Open. Check out the best dispatches from Twitter this week.

[tweet=https://twitter.com/BBTatlantaopen/status/626574412351975424]

[tweet=https://twitter.com/andyroddick/status/626765333987258368]

[tweet=https://twitter.com/lleytonhewitt/status/626766907471892480]

[tweet=https://twitter.com/CitiOpen/status/626903102134841344]

[tweet=https://twitter.com/vika7/status/626899108138070016]

[tweet=https://twitter.com/keinishikori/status/626785517477187584]

[tweet=https://twitter.com/MariaSharapova/status/627122097584640000]

[tweet=https://twitter.com/serenawilliams/status/626858710611165186]

[tweet=https://twitter.com/RafaelNadal/status/625651466905251840]

[tweet=https://twitter.com/jon_wertheim/status/626812413749243904]

[tweet=https://twitter.com/kurtstreeter/status/626503926645329920]

[tweet=https://twitter.com/CoCoVandey/status/625727265742155777]

[tweet=https://twitter.com/geniebouchard/status/626493480374697984]

[tweet=https://twitter.com/geniebouchard/status/626483101661798400]

[tweet=https://twitter.com/CaroWozniacki/status/626393836944658433]

[tweet=https://twitter.com/CaroWozniacki/status/626845755962167296]

[tweet=https://twitter.com/DjokerNole/status/627137619294560256]

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