Seattle Mariners pitcher Hector Santiago was the first player suspended in the wake of Major League Baseball’s crackdown on grip-enhancing substances.

MLB announced a 10-game suspension for Santiago on Tuesday. Santiago elected to appeal the suspension.

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"Seattle Mariners pitcher Héctor Santiago has received a 10-game suspension and an undisclosed fine for possessing a foreign substance on his glove at the end of the fifth inning of his Club’s Sunday, June 27th game against the Chicago White Sox at Guaranteed Rate Field," MLB said in a statement.

"The suspension of Santiago had been scheduled to begin tonight, when the Mariners are scheduled to play the Toronto Blue Jays at Sahlen Field in Buffalo. However, Santiago has elected to appeal. Thus, the discipline will be held in abeyance until the process is complete."

Santiago was ejected in the fifth inning of the first game of a doubleheader between the Mariners and the Chicago White Sox. His glove was also confiscated.

"He was ejected for when his glove was inspected, for having a foreign substance that was sticky on the inside palm of his glove," umpire Tom Hallion told a pool reporter.

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Santiago claimed it was just sweat and rosin on his mitt.

"I think once they take it back and check, it’s just sweat and rosin," Santiago said after the game. "They’re going to inspect it and all this science stuff and it’s going to be sweat and rosin."

He added: "This is part of it, this is what we have to do, this is part of the game, we’re going to get caught if we’re going to use any substances. My mindset was just use rosin and attack the zone, that’s what I’m trying to do. I know that I didn’t use anything today."

Santiago said he was cited for the alleged illegal substance being in his glove and glove hand, not his pitching hand. Santiago is a lefty.

"If we're not going to be able to use it on our hands, our arms, to keep that sweat from dripping down our hands, keep that slipperiness off the ball, let's just get it out completely," he added, via MLB.com.

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MLB will inspect the glove to determine whether Santiago used a foreign substance or if it was actually sweat and rosin.

The Associated Press contributed to this report.