Are Sun Tiantian and Gene Mayer both tennis players?
Gene Mayer Gene Mayer (born April 11, 1956) is a former tennis player from the United States who won 14 singles titles during his career.
Yi Chu-huan Yi Chu-huan (; born 31 August 1987) is a Taiwanese tennis player playing on the ATP Challenger Tour. On 11 January 2011, he reached his highest ATP singles ranking of 389 and his highest doubles ranking of 176 achieved on 9 July 2012.