Major League Baseball has found no links between Texas Rangers right-hander Yu Darvish and the alleged illegal gambling activities of his younger brother, Sho, U.S. media quoted a source as saying on Saturday.

Sho Darvish was arrested in October and charged with gambling and running a betting ring by the Osaka Public Prosecutors Office on Nov. 17.

But the baseball source said the idea Darvish himself is being investigated is "untrue," according to a report Saturday in the online edition of the Fort Worth Star-Telegram.

The source said MLB was looking into the matter only as it pertained to Sho Darvish. "The idea that anything is specific to Yu Darvish is untrue," the source was quoted as saying.

Sho Darvish allegedly took bets of ¥10,000 on professional baseball games held in Japan and the United States in May. He himself bet in the pool and accepted wagers totaling roughly ¥9.4 million through the mobile phone app LINE.

Yu Darvish was never accused of involvement in his brother's alleged operation. MLB has been following its standard protocols for any investigation involving alleged gambling on its games, a spokesman previously said.

In a statement issued by his representatives with the Wasserman Media Group, Yu Darvish had denied involvement with gambling at any time.

"I am not and have never been involved with gambling activities," Yu Darvish said in the 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." he said.

The Rangers, a second source said, are not concerned that Darvish is facing any punishment that would affect his availability in 2016 once he is deemed healthy after Tommy John surgery 10 months ago, according to the report in the Star-Telegram.