Conversation so far:
Who did Reginald Martinez Jackson play for during his first season?
Jackson debuted in the major leagues with the A's in 1967 in a Friday doubleheader in Kansas City on June 9
Did Reginald Martinez Jackson play well during his time with the Oakland A's?
He helped Oakland win five consecutive American League West divisional pennants, three consecutive American League pennants and three consecutive World Series titles.
Are there any other interesting aspects about this article on Reginald Martinez Jackson besides his time with the Oakland A's?
For football, Jackson was recruited by Alabama, Georgia, and Oklahoma, all of whom were willing to break the color barrier just for Jackson.

Question: What were his trouble with Steinbrenner?
Self-contained rewrite: What was Reginald Martinez Jackson's trouble with George Steinbrenner?