Blateric made his Big League debut in 1971, appearing in two games for the eventual National League champs, not factoring in a decision while posting an ERA of 13.50 over 2.2 innings pitched.
The following year he would suit up for the New York Yankees, where he appeared in one game, throwing four innings of scoreless ball while striking out four.
After spending all of 1973 and 1974 in the Minors, he made it back to a Major League mound in 1975, now as a member of the California Angels, once again not factoring in a decision over two games and 4.1 innings, allowing three earned runs for an ERA of 6.23.
That would be it for his career, spending two more seasons in Minor League ball before retiring in 1977, finishing up with a total of five appearances, no decisions, and an ERA at 5.73 over eleven innings pitched, with 13 strikeouts against only one walk.
