Chinese badminton star Lin Dan has come under fire from fans for signing with a Japanese sponsor.
Dan, a double Olympic gold medallist, signed a sponsorship deal with Japanese equipment maker Yonex, despite the national team using products from domestic manufacturer Li Ning Co.
Some fans took to Weibo to criticise Dan's decision, while others have come out in support of the man considered to be the best in the world.
The decision is considered controversial by some as Japan and China have a stormy history and their rivalries go far deeper than sports.
Dan was quoted on the Yonex website saying: "I want to get my third gold medal in the 2016 Rio Olympics, and inspire children around the world. In the future, I dream of joining up with Lee Chong Wei, Taufik Hidayat and Peter Gade to transform badminton into a major global sport. I think YONEX is the only company that can help us realize this dream. After all, YONEX is the No. 1 brand in the world for badminton."
When asked to comment on the value of the deal, which has been speculated to be worth 100 million Yuan, Dan refused to comment beyond saying it was a "private matter" and that it was "rewarding".