Peter Thomas Ward (born July 26, 1937 in Montreal, Quebec) is a retired professional baseball player who played 9 seasons for the Baltimore Orioles, Chicago White Sox, and New York Yankees of Major League Baseball. The son of former National Hockey League forward Jimmy Ward, Pete attended Jefferson High School in Portland, Oregon and played college baseball at Portland's Lewis & Clark College.
Peter Thomas Ward played hockey in high school. 
Many people play more than one sport in high school, but the context doesn't say one way or the other. I think the system saw "Peter Thomas Ward played hockey" and saw that as a contradiction with him being a professional baseball player. 