Darvish has not yet been accused of any wrongdoing.
MLB spokesperson Michael Teevan said in a statement to The Times the league is aware of the situation and will look into it according to protocol.
“I am not and have never been involved with gambling activities” Darvish said in a statement. “While I understand that Major League Baseball must conduct an investigation, I am certain that they will find that I had no involvement in this matter whatsoever.”
Sho was arrested in October after he allegedly placed bets on MLB and Nippon Professional Baseball.
Sho accepted about “1,850 wagers valued at ¥10,000 each on pro games in both North America and Japan,” according to police.
Darvish has not yet been accused of any wrongdoing. He missed the entire 2015 season after undergoing reconstructive surgery on his pitching elbow.