Hot diggity NL dog days! August got you down? Celebrate the dog days with these fictional pooches.

AP Photo/David GoldmanThese two ballpark beauties are household names only in their own dog houses. But still … Historically, the dog days run from July into August. And we baseball fans know they reach their peak when a sultry August doubleheader leaves us panting like Fido and willing to lap up a $10 beer out of a dog bowl. In honor of this season's dog days, we've assigned each major league team a famous fictional pooch. We start with the National League. We'll cut our canines on the American League Friday. NL WEST JACK Like Benji and Lassie, Jack is loyal and saved his master from a fire in "The Artist," the Academy Award-winning movie. He also is silent, just like the Diamondbacks...