Las Vegas, July 20 -- World number one Magnus Carlsen and number two Hikaru Nakamura will face off on Sunday in a high-voltage showdown for the third-place prize of $100,000 at the Freestyle Chess Grand Slam in Las Vegas, after both carved their way through the lower bracket with gritty and dramatic victories. The penultimate day of the tournament saw Carlsen mount a stunning comeback after an early loss, while Nakamura edged past two of his American compatriots to set up what many fans are calling the real final of the event. Carlsen began his day on the back foot, losing his opening match to India's GM R Praggnanandhaa. It was a continuation of his earlier struggles, having lost to the young Indian on the first day of the tournament as we...