Arizona Diamondbacks outfielder Kole Calhoun, who playfully fist-bumped a teenaged fan after being outreached for a foul ball last weekend, is expected to miss six to eight weeks because of an injured left hamstring injury.

Arizona Diamondbacks outfielder Kole Calhoun, who playfully fist-bumped a teenaged fan after being outreached for a foul ball last weekend, is expected to miss six to eight weeks because of an injured left hamstring injury.