Cleveland Guardians' Luis Ortiz pitches in the first inning against the Minnesota Twins in Cleveland, April 30. (AP Photo/Sue Ogrocki, File)

NEW YORK (AP) — Cleveland Guardians pitchers Emmanuel Clase and Luis Ortiz have been indicted on charges they took bribes from sports bettors to throw certain types of pitches, including tossing balls instead of strikes to ensure successful bets.

According to the indictment unsealed Sunday in federal court in Brooklyn, the highly paid hurlers took several thousand dollars in payoffs to help two unnamed gamblers from their native Dominican Republic win at least $460,000 on in-game prop bets on the speed and outcome of certain pitches.

Clase, the Guardians’ former closer, and Ortiz, a starter, have been on non-disciplinary paid leave since July, when Major League Baseball started investigated what it said was unusually high in-game betting activity when they pitched. Some of the games in question were in April, May and June.

Ortiz, 26, was arrested by the FBI on Sunday at Boston Logan International Airport. He is expected to appear in federal court in Boston on Monday. Clase, 27, is not yet in custody, officials said.

Ortiz and Clase “betrayed America’s pastime,” U.S. Attorney Joseph Nocella Jr. said. “Integrity, honesty and fair play are part of the DNA of professional sports. When corruption infiltrates the sport, it brings disgrace not only to the participants but damages the public trust in an institution that is vital and dear to all of us.”

Ortiz’s lawyer, Chris Georgalis, said in a statement that his client was innocent and “has never, and would never, improperly influence a game — not for anyone and not for anything.”

A lawyer for Clase did not immediately return messages seeking comment.

The players union, the Major League Baseball Players Association, had no comment, spokesperson Silvia Alvarez said.

The charges are the latest bombshell developments in a federal crackdown on betting in professional sports.

Last month, more than 30 people, including prominent basketball figures such as Portland Trail Blazers head coach and Basketball Hall of Famer Chauncey Billups and Miami Heat guard Terry Rozier, were arrested in a gambling sweep that rocked the NBA.

Sports betting scandals have long been a concern, but a May 2018 U.S. Supreme Court ruling led to a wave of gambling incidents involving athletes and officials. The ruling struck down a federal ban on sports betting in most states and opened the doors for online sportsbooks to take a prominent space in the sports ecosystem.

Major League Baseball has been monitoring gambling more closely since the ruling.