Major League Baseball is expected to announce Tuesday that it will suspend players caught with any foreign substance for 10 days with pay to help curtail the widespread use of grip enhancers by pitchers around the league, according to sources.

The league is expected to distribute a memo to teams that outlines its plans to penalize all players caught by umpires with any foreign substance on their person, from the widely used sunscreen-and-rosin combination to Spider Tack, an industrial glue that has become a favorite among pitchers who want to generate more spin on the ball.

The liberal interpretation of Rules 3.01 and 6.02(c), which ban the use of foreign substances, would discipline all substances the same.