Seattle Mariners pitcher receives 10-game suspension for allegedly violating foreign substance rules

Seattle Mariners pitcher Hector Santiago has received a 10-game suspension for allegedly violating Major League Baseball's foreign substance rules, the league announced Tuesday. Santiago is the first to be disciplined under new league protocols, which are designed to step up enforcement of rules meant to prevent pitchers from applying substances to the ball to improve their throws. 

The alleged violation occurred on Sunday, when Santiago was ejected from the Mariners' game against the Chicago White Sox in the fifth inning after umpires checked his glove and found a sticky substance on the inside.  Santiago's glove was given to an MLB authenticator on Sunday night for further examination, according to CBS Sports. Crew chief Tom Hallion said the sticky substance was "very noticeable."