MIAMI — A 38-year-old former employee of Los Angeles Dodgers pitcher Bronson Arroyo was arrested on Monday in Tampa, Fla., and accused of stealing and then selling a yacht belonging to the pitcher after telling him it had sunk.

The former employee, Anthony Acosta, was charged with first-degree grand theft and forgery, the Florida Department of Law Enforcement said. He was being held at the Hillsborough County Jail on $50,000 bond.

Officials said Acosta sold the vessel, a 2006 Concept valued at about $167,000, for $22,000 to a boat dealer in Opa-locka, Fla., in July 2013 after claiming that he was doing so on behalf of Arroyo, who officials said knew nothing about the transaction.

Arroyo, who grew up in Tampa, had bought the vessel, equipped with two outboard engines and capable of high speeds, in May 2007 and hired Acosta to maintain it and perform other duties while Arroyo was “away from his residence playing professional baseball.”