Complex sentence: Roger Eugene Maris (September 10,1934--December 14,1985) was an American professional baseball player who played in Major League Baseball as a right fielder for 12 seasons and on four teams, from 1957 through 1968.
Split into simpler sentences: Roger Eugene Maris (September 10,1934--December 14,1985) was an American professional baseball player. He was a Major League Baseball right fielder for 12 seasons and on four teams, from 1957 through 1968.