Back in February, the St. Louis Cardinals signed 17-year-old pitcher Andres Serrano from the Dominican Republic to a $750,000 contract, but that deal was voided by Major League Baseball on July 23 due to unverified age and identification claims. Cardinals officials confirmed the news on Tuesday, according to Derrick Goold of the St. Louis Post-Dispatch, and that's apparently not the only issue the organization has recently encountered regarding its international signings:
The Cardinals agreed to terms with two international teens, outfielder Magneuris Sierra, 16, and righthanded pitcher Estarlin Arias, 18. Arias has a pending suspension because of a positive drug test that he started serving with the Cardinals on July 18. Sierra's deal is pending an investigation.
For more on the latest Cardinals signings, be sure to check out SB Nation St. Louis' dedicated storystream.