Billionaire Bill Ackman, CEO of New York City-based hedge fund Pershing Square Capital Management, received considerable backlash after losing in his first professional tennis match. Tennis legends Andy Roddick and Martina Navratilova, who have held the coveted No. 1 world ranking during their pro careers, were among those who criticized Ackman's foray into the pro sports ranks.Ackman played alongside former tennis pro Jack Sock in a men's doubles match at the Hall of Fame Open in Rhode Island Wednesday. The event was sanctioned by the Women's Tennis Association (WTA) and Association of Tennis...

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