When you go to Athletics games, you like to be outfitted in the best of the best game day wear. Arrive in this Reggie Jackson Cooperstown Batting Practice Jersey from Mitchell & Ness and you'll be ready to cheer your favorite team on to victory! Mr. October wrapped up his Hall of Fame career in 1987 wearing the #44 for the A's after previously playing in a #9 jersey during his first stint with the team from 1967-75.