Beginning this summer, Americans can whip themselves into shape with a little help from the "Gronk." That's because G&G Fitness is planning to introduce the Gronk fitness line of equipment in the nickname of New England Patriots' tight end Rob Gronkowski. G&G Fitness is a 25-year-old company based in Williamsville and owned by Gordon Gronkowski. The new equipment line will feature silhouette of his son, Rob, spiking a football - a signature move. Rob turned 26 on May 14. Gronkowski said...