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New Jersey Nets point guard Deron Williams says on Twitter that he has officially signed with Turkey's Besiktas.

The All-Star guard has posted a picture of Friday's agreement with Besiktas bearing his signature on his Twitter account.

Williams says on Twitter: "just made it official, headed to Turkey...signed with Besiktas."

Williams averaged 20.1 points and 10.3 assists for the Nets and the Utah Jazz last season.