NEW YORK (CBSDFW.COM/AP) — Former Texas Rangers closer and current free agent Sam Dyson has been accused of domestic violence and is being investigated by Major League Baseball.

The commissioner’s office says in a statement it is “aware of it and looking into it.”

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The Athletic reported Tuesday the allegation was made by an ex-girlfriend, Alexis Blackman, in posts on her personal Instagram account and on an account she writes in the voice of her cat, Snuckles.

The Athletic says posts on the accounts alluding to an unidentified individual were about Dyson, citing a source who was not identified.

Dyson was acquired by Minnesota from San Francisco at the July 31 trade deadline and became a free agent after the season.

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Sam Dyson #49 of the Minnesota Twins reacts after being taken out of the game in the ninth inning against the Miami Marlins at Marlins Park on August 01, 2019 in Miami, Florida. (Photo by Michael Reaves/Getty Images)

The 31-year-old right-hander was 5-1 with a 3.32 ERA in 61 relief appearances this year. He has spent eight seasons in the majors and has also played with Toronto, Miami and Texas.

Dyson pitched for the Rangers in part of 2015, 2016 and part of 2017.

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(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)