Cy Young. Sandy Koufax. Randy Johnson.

Charlie Robertson. Len Barker. Philip Humber.

The club of pitchers, from the legendary to the otherwise forgettable, who have achieved a perfect game — that elegant little baseball schematic: 27 up, 27 down — added another member late Wednesday night when the Yankees’ Domingo German retired every hitter he faced in a 11-0 win in Oakland.

“When you think about the history of baseball and how many pitchers have done it, to be part of history now, it’s exciting,” German said through an interpreter.