Another Padres prospect from Latin America is under investigation for possibly falsifying his name or birth date. Outfielder Yoan Alcantara, who was recently named the top prospect in the Arizona Rookie League for 2011 may have been using a false name and birthdate when he signed a $135,000 bonus with the Padres on July 2, 2009. "As a club, you do the best you can evaluating a player's tools and rely on the experts to determine the player is the person and the age he is representing," Padres vice president of player development and international operations Randy Smith said. Major League Baseball is responsible for verifying each player's identity. Two weeks ago, the Padres learned another top prospect, Alvaro Aristy is actually Jorge Leandro Guzman and 2 1/2 years older than believe when he signed a $1 million bonus with the Padres a year before Alcantara was signed.