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MIAMI (CBSMiami/AP) — Pointing to several flaws during their trial, a sports agent and a baseball trainer convicted in Miami of smuggling Cuban baseball players into the U.S. want a new one.

A court filing Tuesday by lawyers for Bartolo Hernandez and Julio Estrada contends there were seven crucial errors in their trial, including an improper introduction of evidence and several mistakes in how witnesses were permitted to testify.

Prosecutors did not immediately file a response.

Hernandez and Estrada were convicted by a jury March 15th after a six-week trial. Prosecutors said Hernandez faces up to 15 years in prison and Estrada, convicted of more smuggling counts, faces a maximum of 35 years behind bars.

Trial evidence showed the pair ran an operation to smuggle Cuban players in return for a cut of their lucrative baseball contracts.

(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)