Tokyo Olympics officials were dismayed by the news of a betting scandal involving Japan’s top baseball team.

On Wednesday, Yomiuri Giants President Hiroshi Kubo formally apologized after it was found out that two more pitchers from his team gambled on baseball games. The Giants is Japan’s New York Yankees in terms of popularity.

Early this month, Nippon Professional Baseball revealed that pitcher Satoshi Fukuda was involved in betting on the games. Two weeks later, the professional domestic league followed it up with two more players, Shoki Kasahara and Ryuya Matsumoto, just days before Japan’s version of the World Series begins.

Gambling, including most sports betting, is illegal in the country, but it remains unclear if the players will face charges.