This episode of "Mack's Super Retriever Series" re-airs Thursday, May 5, at 5:30 a.m. ET on ESPN2.
A few years back, athletic-shoemaking giant Nike coined the marketing phrase, "Just do it."
And for seven good years, a female yellow Lab owned by Jerry Day and bearing the name of Nike did just that in the world of retrievers, sporting-dog trials and hunting.
Nike, who recently was diagnosed with an inoperable cancerous tumor and had to be put down by her owner in the "cruelest ...Read full story