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Betting scandals have been a concern for professional sports leagues for as long as they’ve existed, but a U.S. Supreme Court ruling in May 2018 has led to a wave of gambling incidents involving athletes and officials. The ruling struck down a federal law that barred sports betting in most states and opened the doors for online sportsbooks to take up a prominent space in the sports ecosystem.

Here is a look at betting scandals involving pro sports:

This 1921 file photo shows Judge Kenesaw Mountain Landis, rear left, as Chicago White Sox players, Charles “Swede” Risberg, center left, and Arnold “Chick” Gandil, look on during the investigation of the infamous “Black Sox” scandal in Chicago. (AP Photo, file)

This 1921 file photo shows Judge Kenesaw Mountain Landis, rear left, as Chicago White Sox players, Charles “Swede” Risberg, center left, and Arnold “Chick” Gandil, look on during the investigation of the infamous “Black Sox” scandal in Chicago. (AP Photo, file)

1980: Two Italian soccer teams were relegated and five others penalized for their involvement in a match-fixing scandal that was dubbed “Totonero.” Most notably, Paolo Rossi was banned for two years for his involvement while playing for Perugia.

Former Boston College basketball player Ricj Kuhn leaves Brooklyn New York Federal Court, Feb. 5, 1982 after receiving a 10-year sentence for his part in a conspiracy to fix games in the team’s 1978-1979 season. (AP Photo/Ron Frehm)

Former Boston College basketball player Ricj Kuhn leaves Brooklyn New York Federal Court, Feb. 5, 1982 after receiving a 10-year sentence for his part in a conspiracy to fix games in the team’s 1978-1979 season. (AP Photo/Ron Frehm)

FILE - Philadelphia Phillies’ Pete Rose slides to third base during a baseball game against the New York Mets in Philadelphia, June 3, 1981. (AP Photo/Rusty Kennedy, File)

FILE - Philadelphia Phillies’ Pete Rose slides to third base during a baseball game against the New York Mets in Philadelphia, June 3, 1981. (AP Photo/Rusty Kennedy, File)

Ridley (AP Photo/Adam Hunger, File)

Ridley (AP Photo/Adam Hunger, File)

AP sports: https://apnews.com/sports