Randy Gradishar and Steve McMichael, key members from dominant defenses in the 1970s and '80s, and game-breaking AFL receiver Art Powell are finalists for the Pro Football Hall of Fame’s class of 2023. Gradishar, McMichael and Powell were announced Wednesday as the three senior candidates for next year’s Hall of Fame class from a list of 12 semifinalists. Gradishar was a key part to Denver’s “Orange Crush” defense in the 1970s, making the Pro Bowl seven times in 10 seasons, being selected as an