Willie McCovey, the sweet-swinging Hall of Famer nicknamed ''Stretch'' for his 6-foot-4 height and those long arms, died Wednesday. A first baseman and left fielder, McCovey was a .270 career hitter with 521 home runs and 1,555 RBIs in 22 major league seasons, 19 of them with the Giants. McCovey made his major league debut at age 21 on July 30, 1959, and played alongside the other Willie - Hall of Famer Willie Mays - into the 1972 season before Mays was traded to the New York Mets that May.