Adelaide [Australia], January 19 (ANI): Australia opener Usman Khawaja was forced to retire hurt after a blow to his chin on Friday during the first Test match against the West Indies at the Adelaide Oval. The hosts managed to get a comfortable win over the Caribbeans on the third day of the first Test match, however, the left-handed batter was struck with a bouncer by Windies speedster Shamar Joseph on the third ball of the seventh over. Shamar delivered a 138 kph bouncer that skidded through from around the wicket and drew blood from the 37-year-old as he tried to move his head from the line…