Jackie Robinson was the first pro ball player on a pro team.
The best baseballs are Rawlings leather baseballs. These baseballs are found at Dicks Sporting Goods. Rawlings leather baseballs are the baseballs the pro's use.
While there were a few black players in the late 1800s, there was an unwritten ban at the start of the 20th century. It was broken by Jackie Robinson, the first black pro baseball player in 1947 when he played for the Brooklyn Dodgers.
Real baseballs used by MLB and other professional and semi-pro oragnizations and also club leagues around the country do not use rubber baseballs. rubber baseballs are cheap imitations and are not really used in organized baseball leagues.
First Pro November 12, 1892
1954 - Harold Dunovant turned pro and was one of the first black golfers
The first black pro athlete was Bill Richmond. He was a boxer and began in 1777.