Texas Rangers star pitcher Yu Darvish is being investigated by Major League Baseball in the wake of his brother Sho being charged last year with running an illegal gambling ring that allegedly took bets on both MLB and NPB games, The Japan Times has learned.

Yu Darvish has not been accused of any wrongdoing by the Osaka police at this point, but MLB has confirmed that it is conducting a probe to find out if there is any link between the ace and the reason for his younger brother's arrest in October.

"We are aware of this situation and are looking into it, per our standard protocols," MLB's vice president for communications Michael Teevan wrote in a recent email to The Japan Times.