Japan's Kei Nishikori said his love for tennis remains unchanged as he bid farewell to his storied career at a retirement ceremony Tuesday, the final day of the Japan Open championship.The 36-year-old appeared before a big crowd at Tokyo's Ariake Colosseum, which was eager to honor the greatest male player Japan has seen in the sport, one who reached No. 4 in the world rankings and became the country's first Grand Slam singles finalist at the 2014 U.S. Open.The 2016 Rio de Janeiro Olympics bronze medalist had announced in late April that he would retire at the end of the season. He lost in …READ FULL ARTICLE