Wood reached the majors at age 18 in 1908 and by 1911 he was one of the best pitchers in the AL, going 23-17 with a 2.02 ERA that season for the Boston Red Sox. He was even better in 1912, with 34 wins, a 1.91 ERA and 10 shutouts. But he pitched 619 2/3 innings in those seasons and though he was still good -- he finished with a 2.03 career ERA -- he only pitched 434 2/3 innings the rest of his career. Eventually, injuries forced him from the mound for good. He pitched in just three more games after 1915 and finished his career as a position player, batting .297 for the Indians in 1922.