Sammy Sosa was the first batter to hit a home run against every Major league team
There are no records of Willie Mays pitching at the Major League level.
Chicago white pitching coaches dalaries
Al Jackson, became the first black pitching coach in the major leagues in 1977, working with the Mets and later the Baltimore. In 1977 Al Jackson was Don Zimmer's pitching coach with the Boston Red Sox to become the first black pitching coach in MLB.