And Khalil Greene and his anxiety disorder? The Cardinals apparently had no idea if Greene experienced this in San Diego before they made the move to trade for him. And part of that is due to a medical blackout. If a player has gone through any type of psychological testing or therapy, the Collective Bargaining Agreement between the players union and the owners prohibits the sharing of such information between the teams. In other words, if Greene had any psychological issues in San Diego, the Padres could not include that in any medical reports sent to the Cardinals. At that point, the Cardinals could have found out if someone with the Padres told them on a background, off-the-record basis. Or if, say, a Cardinals scout had gotten wind of Greene’s condition through a network of baseball sources.