How much is the Warriors jersey-patch advertising deal with Rakuten?

The Golden State Warriors signed the largest of the NBA advertising patch deals this week, selling the space on its jersey for the next three years to Japanese tech company Rakuten.

Sources say the deal is worth $20 million per year, nearly doubling the second-highest deal, signed by the Cleveland Cavaliers. The Warriors will sport Rakuten's genuine logo with red and black on their white jersey, a white version of the logo on the blue jersey, and a gold version on the slate jerseys.

Rakuten, which owns cash-back site Ebates, messaging app Viber and e-book brand Kobo, has ratcheted up its sponsorship spending as of late. In July, its name started appearing on FC Barcelona's kit in a deal worth 220 million euros ($262 million) over four years. Read more at ESPN.

Find the latest news on Rakuten on Twitter @RakutenUS or visit their Facebook page.

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