 In the past, visible tattoos were also prohibited and players wore navy arm bands to cover them, although this practice has since been discontinued.Although this is a policy that all baseball teams once had, the Yankees are currently the only team with such a policy (though former Chicago White Sox general manager Ken Williams was known for asking players to cut their hair, the club does not now nor during his time as GM have a policy banning long hair) and have gotten notoriety enforcing it.Many players, most notably Reggie Jackson, Jeff Reardon, Roger Clemens, Kevin Youkilis, Jason Giambi, Gary Sheffield, Johnny Damon, Andrew McCutchen and Randy Johnson either had long hair, significant facial hair, or both before playing for the Yankees, but were clean-cut by the time they had their press conferences unveiling them as members of the Yankees.