Deron Williams was once among the best point guards in the NBA when he played for the Utah Jazz and Brooklyn Nets.
The former Illinois star most recently played in the league during the 2017 season when he helped the Cleveland Cavaliers make the NBA Finals.
On Saturday, Williams made a post to Instagram that had nearly 1,000 likes in five hours.
Williams captioned his post: "Amazing to chop it up with the @rogerfederer
My mom is pissed at me but she will be ok "
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