BOSTON — Cleveland Guardians pitcher Luis Ortiz is due in court Monday on charges accusing him and teammate Emmanuel Clase of taking bribes to help bettors in their native Dominican Republic win prop bets placed on pitches they threw.According to the indictment against the two unsealed Sunday, the highly paid hurlers took several thousand dollars in payoffs to help two unnamed gamblers in their home country win at least $460,000 on bets placed on the speed and outcome of certain pitches, including some that landed in the dirt.Clase, who was the Guardians’ closer, and Ortiz, a starter, have been on nondisciplinary paid leave since July, when MLB started investigating what it said was unusually high in-game betting activity when the two pitched. Some of the games in question were in April, May and June.Ortiz, 26, was arrested Sunday by the FBI at Boston Logan International Airport. He is expected to appear in federal court in Boston on Monday. Clase, 27, is believed to be outside the U.S., according to a law enforcement official familiar with the matter. The official was not authorized to speak publicly about the case and did so on condition of anonymity.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 woul …