By Muhammad Rafiq DUBAI: Nominations for the $10,000,000 Dubai World Cup sponsored by Emirates Airline (G1) closed on January 11th with 136 of the globe’s premier Thoroughbreds. Scheduled for March 31st, 2018, the 2000m dirt fixture has been won by such superstar champions as Cigar, Dubai Millennium, Invasor, Curlin, California Chrome and Arrogate. In 2018, nominations for the Dubai World Cup …