Kei Nishikori and Novak Djokovic at GR8 Fundraiser for Japan earthquake victims in Miami in 2011

The world’s top tennis player Novak Dokovic ended his deal with clothing sponsor Sergio Tacchini reports Danielle Rossingh of Bloomberg. In an emailed statement to media the clothing company said: “It has been mutually and amicably decided that, as of the 2012 Roland Garros Grand Slam, Novak Djokovic will no longer be the brand ambassador.”

Serbian publication TANTUG reports that Djokovic will announce on Wednesday in Paris that he has inked a deal to wear UNIQLO clothing. The Japanese company which a subsidiary of Fast Retailing Co. is also the clothing sponsor of Kei Nishikori.

From CNBC’s Darren Rovell: Sergio Tacchini, Djokovic Shockingly Part Ways

May 23, 2012 update: Danielle Rossingh of Bloomberg reports that Djokovic has signed a five-year deal with Uniqlo and at a Wednesday new conference in Paris to announce the signing Djokovic donned one of his new outfits.

There’s no buyout clause in Djokovic’s agreement with Uniqlo, according to a person familiar with the situation who declined to be identified because the financial terms of the deal haven’t been made public.

“It’s time to move on,” from the Sergio Tacchini partnership, Djokovic said today. He’ll continue to wear tennis shoes made by Adidas, he said.