Broncos fans will have more chances to see Sean Payton’s team in action when training camp opens later this summer. Denver is set for 16 open training camp practices beginning Friday, July 26, Broncos president Damani Leech told The Post on Tuesday, a substantial increase over the 12 open dates last summer. The full set of dates will be released Wednesday, but they include the NFL’s Back Together Weekend celebration on July 27 and a Friday, Aug.