a triple play into history

last night, the Pittsburgh Pirates and St.Louis Cardinals were involved in the first 4-5-4 triple play (positions on the field are numbered. 4 is second base and 5 is third base). with the Cardinals batting and runners on second and third, Yadier Molina lined to second baseman Neil Walker for the first out. Walker then threw to third baseman Jung Ho Kang to get Jhonny Peralta out at third. Jason Heyward was running to third thinking base hit, saw what happened and realized what was going on, hustled back to second, but too late. Kang threw the ball back to Walker at second for the third out. triple play.