Gladiator King has proven a shrewd purchase by Sheikh Rashid bin Humaid Al Nuaimi, the 4-year-old son of Curlin now two-for-two in Dubai, having added victory in Thursday's G3 Al Shindagha Sprint to his score in the G3 Dubawi S. on opening night of the carnival on Jan. 2. Gladiator King was previously trained by Jaime Mejia in the U.S., and he won a key U.S. 3-year-old sprinting contest, the GIII Hutcheson S., last winter before finishing a head second in the GIII Chick Lang S. on the Preakness undercard....