The New York Yankees are considering voiding the contract of Alex Rodriguez amid another connection to illegal performance enhancing drugs.

According to an industry source, the Yankees "are looking at about 20 different things," including whether Rodriguez breached the contract by taking medical treatment from an outside doctor without the team's authorization, and the possibility that he may have broken the law by purchasing controlled substances from a Miami "wellness clinic" run by nutritionist Anthony Bosch.

"(The Yankees) can't do anything until the MLB investigation is concluded and they take action, if any," the source said.

Rodriguez has five seasons and $114 million remaining on his contract.

According to a source, the fact that the Yankees continued to honor Rodriguez's 10-year, $275 million contract extension after his public admissions of steroid use in 2009 may further weaken their case to void the contract.

By their failure to act in 2009, the Yankees can be legally found to have "ratified" Rodriguez's behavior, defined as one party "accepting and approving the conduct of the other."