Aristy faked age for bonus

Alvaro Aristy, originally Jorge Leandro Guzman, forged everything from his name to age and even talent.

The vice president of Major League Baseball's department of investigations, Dan Mullin, remarked the MLB got a tip about Aristy's identity in January 2010.

From Baseballamerica.com:

Randy Smith, Padres vice president of player development and international scouting, said the team was surprised to learn of Guzman's fraud before spring training in 2010. "We had no reason to be suspicious," Smith said. "From our information and him being cleared the first time, we were comfortable with MLB's investigation."

MLB launched its department of investigations in 2008 in response to recommendations from the Mitchell Report, but Mullin's team didn't take over age and identity investigations of Latin American players until July 2009. Prior to that, teams contracted out background checks of Latin American players—including Guzman's—to independent investigators, a system that team officials often complained was ineffective and at times outright corrupt.

Aristy tested positive for a metabolite of Nandrolone, an anabolic steroid commonly sold as Deca Durabolin.